14. 5 students were asked to record their GPA from High School and College. The results are below: Student HS GPA College GPA 3.8 A B C GE D E 2 3 3.1 5 4.0 2.5 3.3 2.8 2.2 Sum= 3.5 Sample x-H.S. GPA 1.9 2.5 a. Find the correlation coefficient r by filling in the following chart and using the formula: y- College GPA Sum= Sum= x² Sum= Sum= xy

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section4.5: Correlation And Causation
Problem 14PPS
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14. 5 students were asked to record their GPA from High School and College. The results are below:
Student HS GPA College GPA
A
B
C
D
2
E
3.8
3
3.1
4.0
2.5
3.3
2.8
2.2
Sum=
3.5
1.9
Sample x-H.S. GPA
1
2.5
a. Find the correlation coefficient r by filling in the following chart and using the formula:
y-College GPA
Sum=
Sum=
Sum=
Sum=
xy
Transcribed Image Text:14. 5 students were asked to record their GPA from High School and College. The results are below: Student HS GPA College GPA A B C D 2 E 3.8 3 3.1 4.0 2.5 3.3 2.8 2.2 Sum= 3.5 1.9 Sample x-H.S. GPA 1 2.5 a. Find the correlation coefficient r by filling in the following chart and using the formula: y-College GPA Sum= Sum= Sum= Sum= xy
b. Find the line of best fit, by using the above information, and the formula.
c. Use the line of best fit to predict a student's GPA if her High school GPA is a 2.75.
Transcribed Image Text:b. Find the line of best fit, by using the above information, and the formula. c. Use the line of best fit to predict a student's GPA if her High school GPA is a 2.75.
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