12. A student took a random sample of 10 students enrolled in an accounting class last semester, asking each to report the total amount of time spent studying for the course and the grade that the student received. The data is listed below: Study Time Grade 40 77 42 63 37 79 47 86 25 51 44 78 41 83 90 48 35 65 28 47 a. Calculate the covariance. b. Calculate the coefficient of correlation. x C. Calculate the coefficient of determination. Kd. Determine the least squares line. What do the statistics calculated above tell you about the relationship between the marks and study time? е.
12. A student took a random sample of 10 students enrolled in an accounting class last semester, asking each to report the total amount of time spent studying for the course and the grade that the student received. The data is listed below: Study Time Grade 40 77 42 63 37 79 47 86 25 51 44 78 41 83 90 48 35 65 28 47 a. Calculate the covariance. b. Calculate the coefficient of correlation. x C. Calculate the coefficient of determination. Kd. Determine the least squares line. What do the statistics calculated above tell you about the relationship between the marks and study time? е.
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 24PFA
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Transcribed Image Text:12. A student took a random sample of 10 students enrolled in an accounting class last
semester, asking each to report the total amount of time spent studying for the course and
the grade that the student received. The data is listed below:
Study Time
Grade
40
77
42
63
37
79
47
86
25
51
44
78
41
83
90
48
35
65
28
47
a. Calculate the covariance.
b. Calculate the coefficient of correlation.
x C. Calculate the coefficient of determination.
Kd. Determine the least squares line.
What do the statistics calculated above tell you about the relationship between the marks
and study time?
е.
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