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20 students were surveyed and asked asked how many hours they spent on a screen the day before a test. The table summarizes the results. on. (d) determine the line of best fit and the equation. (e) What does the r value/r value tell you? (f) Use the equation to algebraically predict the test mark for a student who spends 7 hours on a screen before a test. Use your graph to verify your solution.

20 students were surveyed and asked asked how many hours they spent on a screen the day before a test. The table summarizes the results. on. (d) determine the line of best fit and the equation. (e) What does the r value/r value tell you? (f) Use the equation to algebraically predict the test mark for a student who spends 7 hours on a screen before a test. Use your graph to verify your solution.

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Two Variable Statistics Screen Mark Screen Mark Time (%) Time (%) Option 10 (hrs) (hrs) 85 3.5 75 20 students were surveyed and asked asked how many hours they spent on a screen the day before a test. The table summarizes the results. 4 60 3 81 0.5 85 1 78 70 5.5 62 1.5 74 1 89 2 89 81 84 90 (d) determine the line of best fit and the equation. 73 2.5 77 (e) What does the r value/r² value tell you? 1 95 1 89 (f) Use the equation to algebraically predict the test mark for a student who spends 7 2.5 76 4. 55 hours on a screen before a test. Use your graph to verify your solution. 3.
Transcribed Image Text:Two Variable Statistics Screen Mark Screen Mark Time (%) Time (%) Option 10 (hrs) (hrs) 85 3.5 75 20 students were surveyed and asked asked how many hours they spent on a screen the day before a test. The table summarizes the results. 4 60 3 81 0.5 85 1 78 70 5.5 62 1.5 74 1 89 2 89 81 84 90 (d) determine the line of best fit and the equation. 73 2.5 77 (e) What does the r value/r² value tell you? 1 95 1 89 (f) Use the equation to algebraically predict the test mark for a student who spends 7 2.5 76 4. 55 hours on a screen before a test. Use your graph to verify your solution. 3.
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