What is the value of the correlation coefficient r across the entire data set (all 10 students)?

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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What is the value of the correlation coefficient r across the entire data set (all 10 students)?

The following data set was collected by Campus Life. They are investigating the possibility of a
relations between students' time spent studying each week (in hours) and how much time they dedicate
to campus life activities each week (in hours). In this table, each "ID" represents a single student.
Student
X-
Y - Activities
ID
Studying
1
6
10
2
3
5
3
1
2
4
4
13
5
4
7
8
15
7
4
7
8
9
3
4
12
10
7
16
Mean
5.0
9.0
Std. Dev
2.5
5.0
Transcribed Image Text:The following data set was collected by Campus Life. They are investigating the possibility of a relations between students' time spent studying each week (in hours) and how much time they dedicate to campus life activities each week (in hours). In this table, each "ID" represents a single student. Student X- Y - Activities ID Studying 1 6 10 2 3 5 3 1 2 4 4 13 5 4 7 8 15 7 4 7 8 9 3 4 12 10 7 16 Mean 5.0 9.0 Std. Dev 2.5 5.0
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