Question

In the following data, x is the average number of hours the student spent working on math each week and y is the final grade in a math class. hours/week x Grade y 5 62 7 52.8 7 56.8 8 67.2 8 62.2 9 76.6 13 73.2 13 90.2 15 80 15 78 The line of best fit is y = 2.55x + 44.4. What is the predicted value for the final grade when a student spends an average of 11 hours each week on math? Grade = Round to 1 decimal place.

Name: in the following data x x is the average number of hours the student spent working on math each week and y y is the final grade in a math class hoursweek x grade y 5 62 7 528 7 568 8 672 8 6 81243
Uploaded: 2022-06-23T10:48:14-08:00
Duration: 1 min 12 s
Channel: David Nguyen
Description: in the following data x x is the average number of hours the student spent working on math each week and y y is the final grade in a math class hoursweek x grade y 5 62 7 528 7 568 8 672 8 6 81243

          In the following data, x is the average number of hours the student spent working on math each week and y is the final grade in a math class.

hours/week x   Grade y
5               62
7               52.8
7               56.8
8               67.2
8               62.2
9               76.6
13             73.2
13             90.2
15             80
15             78

The line of best fit is y = 2.55x + 44.4. 

What is the predicted value for the final grade when a student spends an average of 11 hours each week on math? Grade = Round to 1 decimal place.

Added by Michael J.

Elementary Statistics a Step by Step Approach

Allan G. Bluman 9th Edition

Instant Answer

Solved by Expert David Nguyen

06/23/2022

Step 1

So, y = 2.55 * 11 + 44.4 = 28.05 + 44.4 = 72.55 Show more…

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In the following data, x is the average number of hours the student spent working on math each week and y is the final grade in a math class. hours/week x Grade y 5 62 7 52.8 7 56.8 8 67.2 8 62.2 9 76.6 13 73.2 13 90.2 15 80 15 78 The line of best fit is y = 2.55x + 44.4. What is the predicted value for the final grade when a student spends an average of 11 hours each week on math? Grade = Round to 1 decimal place.