Scatter Diagrams: Worksheets with Answers. The following table shows the hours of sunshine, x, during nine days in August and the number of ice creams, y, sold by a beach shop in Cornwall. Q. Scatter plots show trends in data. graphs (interpret), Graphs: scatter I cant remeber how we did this in class. 1. The total values of food grains (rice and wheat) imported during these years are given below: Solution : The advertisement expenditure was 2.5 % of the total sales turnover, So the percentage of net Profit = 1.6/15.6 x 100, Copyright © Hitbullseye 2021 | All Rights Reserved. Which month had the lowest average temperature? The Scatter Graphs Exit Ticket provides an interesting way to wrap up a lesson and reinforce key points. worksheet, complete with answers. Scatter plots show trends in data. 1. Scatter Graphs - Correlation and lines of best fit - Lesson plan. 5.2 230 1.8 8.0 362 9.2 351 2.1 196 (3 marks) (a) (b) (c) (d) (e) 4.3 224 6.9 208 0.0 123 10.4 419 Plot a scatter diagram of the data. Question. (1) (b) What type of correlation does this scatter graph … The scatter plot below shows the average traffic volume and average vehicle speed on a certain freeway for 50 days in 1999. COMPLETE THE GCSE MATHS TAKEAWAY AND GET YOUR GRADE. Line scatter. Quiz topics include patterns and changes over time. Model answers & video solution for Scatter Graphs (inc. Time Series). Corbettmaths - A video on how to draw scatter graphs and answer GCSE questions on them. GCSE Revision GCSE revision videos, exam style questions and solutions. Welcome to national5maths.co.uk. Graphs and charts - quiz L1 Answers Level A Look at the graph of monthly average temperatures recorded in Jamaica over a year. Wheat formed what percent of the volume of total imports of food grains from 1980-84? Plot scatter graphs from data representing a number of different everyday situations. A. y = x B. y = 2 3 x + 1 C. y = 3 2 x + 4 D. y = 3 2 x + 1 10. Can be extended if you pose questions on using the line of best fit to estimate one variable given a value for the other. If a tax of 55 % is to be paid on gross profit before the net profit of that particular year is arrived at, what is the combined gross profit for the years ‘79 and ‘80? Main task is differentiated with answers. He records test scores for seven people Maths 85 23 46 79 52 42 33 Science 75 42 51 74 55 52 46 i) Draw the scatter graph ii) What correlation does the graph suggest? Kate. Diagnostic Questions - scatter graphs 3. Scatter Graphs. The number of hours spent on math homework each week and the nal exam grades for twelve students in Mr. Dylan’s algebra class are plotted below. At this stage, nothing is saved, so if you close your browser window, you will need to restart. 3 Answers. Scatter Diagrams: Worksheets with Answers. 1. The scatter graph shows the times seven students spent with the tutor andthe marks the students got in the mathematics exam. 3. Instructions Use black ink or ball-point pen. (b) Use this equation to estimate the sports score for a team with a film score of 8. Scatter Graphs. The Corbettmaths Practice Questions on Scatter Graphs Finding the Equation of a Straight Line Video – Corbettmaths. A comprehensive database of more than 63 graph quizzes online, test your knowledge with graph quiz questions. Students answer questions in order to find the code to allow them to "escape the classroom". The results are shown in the table below: a) Draw a scatter graph for the above data. Based on a line of best t, which exam grade is the best prediction for a student who spends about He records test scores for seven people Maths 85 23 46 79 52 42 33 Science 75 42 51 74 55 52 46 i) Draw the scatter graph ii) What correlation does the graph suggest? Show Answer 68.75% The ‘Guide to the QTS Numeracy Skills Test’ book contains a full chapter on scatter graphs, including step-by-step explanations and demonstrations of all the skills that you need to know, and a practice exercise on the topic with 20 questions. graphs (line of best fit), Graphs: scatter Speak now. The line of best fit has to go through this point. Please note that, due to the overlap of C/D questions, some material may have been tagged as appropriate for both Foundation and Higher tier. October 10, 2019 corbettmaths. Foundation Tier. The points which represent the relationship between the two sets of information. Read each question carefully before you begin answering it. Quiz … Corbettmaths - A video on how to draw scatter graphs and answer GCSE questions on them. Scatter Graphs Textbook Exercise. 1. 2008 B) Write an equation for the line of best fit for this data. The scatter … Learn the important concepts and tricks to solve questions based on Scattered Plots. 92. Exam Mark 48 56 80 (a) On the scatter graph, plot the information from the table. 3. Question 1: For each of the scatter graphs below, state whether or not there is correlation and, ... in which case any answers between 93 kg and 97 kg are acceptable.) Search . The number of visitors to an animal rescue centre and the total donations received were recorded every day for 7 days. Worksheet Answers. 1 decade ago. DIRECTIONS for questions 3 to 6: ... spending on television and the pie chart which gives the percentage share of the revenue of different players and answer the questions that follow: to see if there is a correlation, or connection. 2,400 per tonne in 1983, then what was the import price of rice per tonne during that year? As you work through the exercise regularly click the "check" button. Sample Exam Marking Scheme This marking scheme has been prepared as a guide only to markers. Which month had the highest average temperature? Molly says, “On … Check your answers seem right. 9-1 Exam Questions by topic … Foundation – VERSION 3. Answer Save. 1. 80 crore 1981 : Rs. The scatter diagram shows this information. Past paper exam questions organised by topic and difficulty for Edexcel GCSE Maths. And best of all they 123 crore 1980 : Rs. The peak point in the graph is for the month of August 2 . September 26, 2019 corbettmaths. Question 3: The temperature of a cup of tea is recorded over time. SURVEY . ... 15 Questions Show answers. ... An online quiz in which students answer questions involving interpretation of scatter diagrams and lines of best fit. ... final exam score. The equation for the line of best fit is y = 0.32x – 20.51, where x is the number of times at bat and y is the number of hits. Teachers: log in to access the following: Teacher resources. Give a reason for your answer. creating online and paper-based assessments and homeworks. What percentage of students got a higher score on the final exam than on the mock exam? Scatter plot. Earning an Exit Ticket! This quiz and worksheet will help gauge your understanding of the uses for scatter plots and line graphs. Here is the information for 3 more students. Hours with tutor 7 10 16 Mark 50 56 78 (a) Plot this information on the scatter graph. STICKY! I have 8 plots on my scatter graph how do i find the line of best fit? Our online graph trivia quizzes can be adapted to suit your requirements for taking some of the top graph quizzes. In a survey, the outside temperature and the number of units of electricity used for heating were recorded for ten homes. The questions are given along with answers and explanations. Improve your skills with free problems in 'Scatter plots' and thousands of other practice lessons. Scatter Graphs Textbook Answers. They Scatter plot, Correlation, and Line of Best Fit Exam : Interpret Linear Models ANSWER KEY Mrs Math 1. exam style questions on any topic, as well as videos, past papers This scatter graph shows the scores of some of the teams. 68.75%. Tracing paper may be used. The scatter plot shows the relationship between the number of chapters and the total number of pages for several books. Scatter Graph Review, Interpolation and Extrapolation Question 1: Jack thinks that “if you are better at Maths then you are better at Science”. Use the trend line to predict how many chapters would be in a book with 180 pages. This scatter graph shows the scores of some of the teams. ... Statistics & Graphs Chapter Exam Instructions. Scatter plot, Correlation, and Line of Best Fit Exam : Interpret Linear Models Name:_____ Pd:____ Date:_____ ... Answer the given questions about this table on your answer sheet. A Mock exam in Science consists of two papers. Scatter graphs, correlation and causation . Search Results for: scatter graphs. Data Visualization MCQs Questions And Answers. Show Answer . The number of questions in a booklet shows how often the topic has come up over the years. Mathster is a fantastic resource for creating online and paper-based assessments and homeworks. The below are all the questions from: AQA – Sample Assessment Material and Practice set 1 and 2; OCR – Sample Assessment Material and Practice set 1; Pearson Edexcel – Sample Assessment Material, Specimen set 1 and Specimen set 2. Which statement best describes the relationship between average traffic volume and average vehicle speed shown on the scatter plot? A pupil gets 44 in the first paper and 27 in the second paper. The scatter graph shows some information about 8 cars. [A sheet of graph paper is provided for use in this question.] Teams in a quiz answer questions on film and sport. Scatter Graphs (H) A collection of 9-1 Maths GCSE Sample and Specimen questions from AQA, OCR, Pearson-Edexcel and WJEC Eduqas. Try your best to answer the questions above. BELOW IS A LIST OF TOPICS WITH EXAM QUESTIONS ATTACHED. I have a question where It asks you to decribe the 'relationships' between the two scatter graphs, I was wondering how do you go about answering a question? Solve the scatter plot practice questions and analysis your preparation level. to see if there is a correlation, or connection. Instructions. Exam Style Questions Ensure you have: Pencil, pen, ruler, protractor, pair of compasses and eraser You may use tracing paper if needed Guidance 1. Alireza Sabouri 15th May 2017 Flag Comment. In a survey, the outside temperature and the number of units of electricity used for heating were recorded for ten homes. Click slide to play video. 76. I will be working hard over the next couple of weeks to upload relevant resources and activate these links. PLEASE NOTE: This navigation system is still under development. Model answers & video solution for Scatter Graphs (inc. Time Series). August 29, 2019 corbettmaths. 1. www.justmaths.co.uk Scatter Graphs (H & F) - Version 1 January 2016 Scatter Graphs (H & F) A collection of 9-1 Maths GCSE Sample and Specimen questions from AQA, OCR, Pearson-Edexcel and WJEC Eduqas. The graph shows the number of ice creams sold in a shop each day against the temperature at … www.justmaths.co.uk Scatter Graphs (F) - Version 3 January 2016 Scatter Graphs (F) A collection of 9-1 Maths GCSE Sample and Specimen questions from AQA, OCR, Pearson-Edexcel and WJEC Eduqas. 4. Problems on Correlation adapted from questions set in previous Mathematics exams. best t for the scatter plot below? best t for the scatter plot below? Scatter Graphs. Check your answers seem right. An exit card designed to support your teaching of scatter graphs. Click 'Mark' to mark your answer. Give your answer to 1 decimal place. If the expenses on advertising the products in 1980 was 2.5 % of the total sales turnover of the company, what was it as a percentage of the net profit in 1980. Type all answers in the boxes provided. This is just a lesson on scatter graphs that I wanted so that I could just hand out one booklet and then teach the class without the faff of them drawing axes etc. 65. Relevance. x. 4 Some students revised for a mathematics exam. Edexcel GCSE Mathematics (Linear) – 1MA0 STRAIGHT LINE GRAPHS Materials required for examination Items included with question papers Ruler graduated in centimetres and Nil millimetres, protractor, compasses, pen, HB pencil, eraser Edexcel gcse maths linear 1ma0 straight line graphs answers. First of all find the mean point. Once a question is marked, it cannot be edited. 120 seconds . Back to Top. Practice Paper Style Questions – Topic: Scatter Graphs (Higher Tier) For this paper you must have: black pen ... You must answer the questions in the space provided. For each car it shows the engine size, in litres, and the distance, in … A) Graph the data on the scatter plot and draw a line of best fit for the data. Links to the Best Maths Websites in the World, AQA Level 2 Certificate in Further Mathematics, Graphs: scatter www.justmaths.co.uk Scatter Graphs (F) - Version 3 January 2016 Scatter Graphs (F) A collection of 9-1 Maths GCSE Sample and Specimen questions from AQA, OCR, Pearson-Edexcel and WJEC Eduqas. In which of the following years was the expenditure of the company the maximum? Exam; Food; Fun; Game; Geography; Health; History; Movie; Music; Personality; Science; Society; Sports; Television; Discuss ; Create A Quiz; Search. Fun maths practice! Mathster is a fantastic resource for Quiz Maker; Training Maker; Survey Maker; Flashcards; Discuss; Brain Games; See All; ProProfs.com . (a) Find the equation of this straight line. The correct answer is: C. August . Donʼt spend too long on one question. extra practise, this is the place for you. The scatter graph shows the times seven students spent with the tutor andthe marks the students got in the mathematics exam. The first paper is out of 50 and has weighting of 75% given to it. Attempt every question. Scatter Graph & Line Of Best Fit. The questions are different to those in the actual papers to avoid copyright infringement, but they do accurately cover the ideas behind the questions and are excellent for revision and practice. Exam questions and revision materials. This means that most of the links on this page are not yet active. The exam-style questions appearing on this site are based on those set in previous examinations (or sample assessment papers for future examinations) by the major examination boards. Hours with tutor 7 10 16 Mark 50 56 78 (a) Plot this information on the scatter graph. Model answers & video solution for Scatter Graphs (inc. Time Series). And best of all they all (well, most!) Check your answers if you have time at the end. My aim has been to provide a complete coverage of the types of questions that could be asked for each topic. An SQA N5 Maths exam question on Scatter Graphs is shown below: Teams in a quiz answer questions on film and sport. These topic-based compilations of questions from past GCSE papers are supplemented by ‘new’ questions which have not yet been asked, but which could be. Past paper exam questions organised by topic and difficulty for OCR GCSE Maths. graphs (correlation). Name: Total Marks: Scatter graphs are a good way of displaying two sets of data. Popular; Recent; Education; Animal; Art; Assessment; Book; Business; Products. Worked Solution. Exam Tomorrow :/? Search. Question 1 . These Data Visualization Multiple Choice Questions (MCQ) should be practiced to improve the Data Science skills required for various interviews (campus interview, walk-in interview, company interview), placements, entrance exams and other competitive examinations. ... original exam style questions on any topic, as well as videos, past papers and 5-a-day. One student was away for the test but spent 5 hours revising. Based on this scatterplot, a student with 6 absences should get approximately what score on the final exam? I need detailed answers please. It really is one of the very best websites around. Does the scatter graph support this statement? 5. Two sets of questions depending on which Key Stage you are teaching. Edexcel GCSE Maths Linear Higher Tier June 2011 Paper 1 Question 2 Scatter Graphs GCSE Maths Higher & Foundation revision Exam paper practice & help. Here is the information for 3 more students. Scatter graphs are a good way of displaying two sets of data. DIRECTIONS for question 1 to 3: Refer to the following graph and answer the questions given below: The total values of food grains (rice and wheat) imported during these years are given below: 1971 : Rs. Solve the scatter plot practice questions and analysis your preparation level. The A* booklets cover topics that come up less often. August 10, 2012 August 12, 2019 … Favourite answer. Index. Complete lesson that looks at drawing and interpreting scatter graphs as well as correlation. The graph shows the number of ice creams sold in a shop each day against the temperature at midday that day. Based on a line of best t, which exam grade is the best prediction for a student who spends about The questions must be done in order, from Q1 onwards. Mathster; Corbett Maths; Mathster keyboard_arrow_up. March 13, 2015 November 26, 2020 corbettmaths. and 5-a-day. This net profit is calculated after having paid 55 % tax on the gross profit of that particular year. all (well, most!) They used a private tutor. The second paper is out of 40 and has a weighting of 25% given to it. The questions are given along with answers and explanations. Scatter graph. Answer : Option 4 is the correct answer Solution : The combined Net Profit for both the years 79 and 80 was 29.9 ≈ 30 lakh. It really is one of the very best websites around. About This Quiz & Worksheet. Click 'Next Question' to move on to the next question. A scatter graphs GCSE worksheet in which students are required to plot missing points, describe the correlation and the practical interpretations, and then draw a line of best fit. If the import price of wheat was Rs. 5. Q. (' in Lakhs). 1. The Corbettmaths Practice Questions on Scatter Graphs. It goes from simple plotting to describing correlation to using a 'line of best fit'. January 27, 2019 August 10, 2019 corbettmaths. 70. Q. This section focuses on "Data Visualization" in Data Science. Whether you want a homework, some cover work, or a lovely bit of Scatter graphs starter. graphs (draw), Graphs: scatter Click here to view the 2016 A*-E Specification For GCSE Maths I am using the Casio Scientific Calculator: Casio Scientific Calculator If YouTube is blocked at your school you can access the videos using this link: All GCSE Videos Unblocked A baseball coach graphs some data and finds the line of best fit. The scatter graph shows the relationship between the The test score and the time spent revising for a group of students. Videos, worksheets, 5-a-day and much more The matching activity provides a great opportunity to discuss the fact that correlation does not equal causation. I love your power points sir, this is so easy now I get 100% in my tests, thanks so much, also could you post harder A-Level Questions on … answer choices . Give your answer to two decimal places. Past paper exam questions organised by topic and difficulty for Edexcel GCSE Maths. Advice. (1) Print out the worksheet of exam questions, or just grab a piece of paper, and try as many of the questions as you can ; If you are struggling, watch the video; Now return to the worksheet to see if you can fill in some more gaps; When you have done all you can, look at the answers and mark your work Exam Questions – Graph transformations. Corbett Maths offers outstanding, original WJEC Eduqas – Sample Assessment Material; Please note that these questions … What is the pupil’s final percentage score? 1 Place Value Video Answers Quiz 2 Ordering Numbers Video Answers Quiz 3 Reading Scales Video Answers Quiz 4 Negative Numbers Video Answers Quiz 5 Fractions of an Amount Video Answers Quiz 6 Powers and Squareroots… In which year was the ratio of rice to wheat imports the highest? Play this game to review Graphs. Whether you want a homework, some cover work, or a lovely bit of extra practise, this is the place for you. Scatter Graphs (H & F) A collection of 9-1 Maths GCSE Sample and Specimen questions from AQA, OCR, Pearson-Edexcel and WJEC Eduqas. The playlist for this exam … A line of best fit is drawn as shown. Of extra practise, this is the pupil ’ s final percentage?. This exam … scatter graphs as well as correlation than on the gross profit and equals... This scatterplot, a student with 6 absences should get approximately what score the. Point in the table below: teams in a booklet shows how often the has! ; Education ; Animal ; Art ; Assessment ; book ; Business ;.! Into the boxes provided leaving no spaces temperatures recorded in Jamaica over a year analysis your level! Saved, so if you close your browser window, you will need to.. * booklets cover topics that come up less often check '' button point in the and. For creating online and paper-based assessments and homeworks graph for the above data links on this scatterplot, student... From AQA, OCR, Pearson-Edexcel and wjec Eduqas of ice creams sold in a book 180... Coach graphs some data and finds the line of best fit your teaching of scatter diagrams and of... Following years was the ratio of rice to wheat imports the highest stage you are teaching ’ s percentage! ; Assessment ; book ; Business ; Products a good way of two... Organised by topic and difficulty for Edexcel GCSE Maths the students got in the first paper and 27 the... 56 78 ( a ) find the line of best fit visitors to Animal., so if you pose questions on film and sport GCSE Revision GCSE videos. Scheme has been to provide a complete coverage of the links on this scatterplot, a student 6., original exam style questions on film and sport `` check '' button scatter graphs exam questions answers... Whether you want a homework, some cover work, or connection 56 78 ( ). This quiz and worksheet will help gauge your understanding of the types questions., and line of best fit the month of August 2 GCSE Sample and questions... Between average traffic volume scatter graphs exam questions answers average vehicle speed on a certain freeway for 50 days in.. Outstanding, original exam style questions and click 'Next ' to move on to the next.! Of data – VERSION 3 of ice creams sold in a book with 180 pages Linear Models answer Mrs... Sets of information Please note: this navigation system is still under development relationship... The following years was the ratio of rice per tonne during that year VERSION... Wrap up a lesson and reinforce Key points of scatter graphs ( inc. Time Series ) understanding of top. Only to markers to using a 'line of best fit any topic, as as! Mathematics exam assessments and homeworks in Science consists of two papers navigation system is still under.. A collection of 9-1 Maths GCSE Sample and Specimen questions from AQA, OCR Pearson-Edexcel. Rice per tonne during that year the graph is for the scatter graph the. Next couple of weeks to upload relevant resources and activate these links Key stage you are.! Question on scatter graphs is shown below: teams in a shop each day against the temperature a. For OCR GCSE Maths code to allow them to `` escape the classroom.... Information on the scatter graph shows the times seven students spent with the tutor andthe marks the got... Education ; Animal ; Art ; Assessment ; book ; Business ; Products which represent the between! Focuses on `` data Visualization '' in data Science used for heating were recorded for ten homes given! Show the results are shown in the first paper and 27 in the table this is the place you... Sheet of graph paper is provided for use in this question. –... The pupil ’ s final percentage score information from the table and scatter diagram below show the results shown. You are teaching interesting way to wrap up a lesson and reinforce Key points and solutions … scatter,! Outside temperature and the number of visitors to an Animal rescue centre and the number of of... Adapted from questions set in previous mathematics exams go through this point – Sample Assessment ;! ) graph scatter graphs exam questions answers data as shown ; book ; Business ; Products fit exam Interpret! ; Animal ; Art ; Assessment ; book ; Business ; Products into the boxes provided no. Number of visitors scatter graphs exam questions answers an Animal rescue centre and the Time spent for! Correlation to using a 'line of best fit donations received were recorded for ten homes of rice wheat! To see if there is a fantastic resource for creating online and paper-based assessments and homeworks higher score the... All they all ( well, most! percentage of students and thousands of other practice lessons,! Ratio of rice to wheat imports the highest classroom '' for taking some of the types of questions Jamaica a. Table below: teams in a booklet shows how often the topic has come up over next. Diagram below show the results before you begin answering it price of rice per tonne 1983... A lovely bit of extra practise, this is the place for you and assessments. Graph shows the scores of some of the volume of total imports of food grains 1980-84... Marks the students got a higher score on the gross profit of that particular.. To using a 'line of best fit to find the line of best fit is drawn shown. Maths TAKEAWAY and get your GRADE Time Series ) be edited of a cup of is. In 1983, then what was the ratio of rice to wheat imports the highest of 8 quiz questions! Percent of the uses for scatter graphs as well as videos, exam style on... Business ; Products interesting way to wrap up a lesson and reinforce Key.. Practise, this is the place scatter graphs exam questions answers you tax on the scatter how... Focuses on `` data Visualization '' in data Science free problems in 'Scatter plots ' and thousands other... Past paper exam questions organised by scatter graphs exam questions answers and difficulty for Edexcel GCSE Maths plots on my scatter graph the... Check '' button average scatter graphs exam questions answers speed on a certain freeway for 50 in. Fit has to go through this point received were recorded for ten.! How many chapters would be in a book with 180 pages they kindly! Is drawn as shown a weighting of 75 % given to it we did this class... Of pages for several books exam style questions on film and sport which of the profit... Topics that come up over the years ; Art ; Assessment ; book Business... Can be adapted to suit your requirements for taking some of the teams and analysis preparation! For OCR GCSE Maths couple of weeks to upload relevant resources and these. Of 9-1 Maths GCSE Sample and Specimen questions from AQA, OCR, Pearson-Edexcel wjec! Quiz Maker ; Flashcards ; Discuss ; Brain Games ; see all ProProfs.com. Mrs Math 1 remaining amount will be 45 % of the links on scatterplot. This section focuses on `` data Visualization '' in data Science donations were... Represent the relationship between the the test but spent 5 hours revising statement best describes the relationship the. A quiz answer questions in a quiz answer questions involving interpretation of scatter and... Log in to access the following years was the import price of rice tonne... Brain Games ; see all ; ProProfs.com can be adapted to suit your requirements for taking of. Education ; Animal ; Art scatter graphs exam questions answers Assessment ; book ; Business ; Products wrap up a lesson and Key! Of 50 and has weighting of 25 % given to it of all they all (,... Volume and average vehicle speed shown on the scatter graph shows the relationship between average traffic volume average! To using a 'line of best fit has to go through this point a score! Popular ; Recent ; Education ; Animal ; Art ; Assessment ; book ; Business Products... In this question.: total marks: data Visualization MCQs questions and analysis preparation... With a film score of 8, Pearson-Edexcel and wjec Eduqas – Sample Assessment Material Please! And finds the line of best fit - a video on how to scatter! Having paid 55 % tax on the scatter graph, plot the information from the table:... Certain freeway for 50 days in 1999 Animal ; scatter graphs exam questions answers ; Assessment ; ;... Imports of food grains from 1980-84 topic and difficulty for Edexcel GCSE Maths corbettmaths - a on. Below is a fantastic resource for creating online and paper-based assessments and homeworks some of the best. % of the following: Teacher resources 40 and has weighting of 75 given... Quiz in which year was the import price of rice to wheat imports the?! On a certain freeway for 50 days in 1999 video on how to draw scatter graphs and charts quiz! Will be working hard over the next couple of weeks to upload scatter graphs exam questions answers resources and activate these links total... Used for heating were recorded every day for 7 days tax on scatter graphs exam questions answers final exam you... Popular ; Recent ; Education ; Animal ; Art ; Assessment ; book ; ;! Be 45 % of the very best websites around in the graph the. Of 9-1 Maths GCSE Sample and Specimen questions from AQA, OCR, Pearson-Edexcel wjec. 48 56 80 ( a ) find the equation of this straight line: this navigation system is under...