In a research project to determine the relationship between the number of test review problems solved and students’ grades for the test, 6 students were randomly chosen and below data was collectedx (number of review problems solved)y (students grades in %)1082128554598315871186a) Draw a scatter plot for the data; b) Find the equation of the line of best fit. Draw the line of best fit on the scatter plot diagram. Round off the coefficients to one decimal place; show all calculations. c) Find the coefficient of determination. Write a statement of interpretation for it.

GIven, The data is: x (number of review problems solved) y (students grades in %) 10 82 12…

Answered: In a research project to determine the…

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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In a research project to determine the relationship between the number of test review problems solved and students’ grades for the test, 6 students were randomly chosen and below data was collected

x (number of review problems solved)	y (students grades in %)
10	82
12	85
5	45
9	83
15	87
11	86

a) Draw a scatter plot for the data;

b) Find the equation of the line of best fit. Draw the line of best fit on the scatter plot diagram. Round off the coefficients to one decimal place; show all calculations.

c) Find the coefficient of determination. Write a statement of interpretation for it.

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