The table below is a measure of how many ounces of caffeinated coffee a person drinks and how much sleep they get.   Ounces of coffee    Hours of sleep. 22    8.9 24    6.3 38    5.9 22    6.8 19    7.4 35    6.4 28    7.2 19    7.6 27    8.9 28    9.3 25    5.4 18    6.1 35    4.3 33    8.1 28    5.8 17    6.3 25    4.8 32    5.4 18    7.5 22    6.8 25    4.7 35    6.5 41    4.2 18    7.3 51    6.8 18    5.9 32    8.1 27    4.1 38    5.8 41    6.4 52    7.7 18    9.4 34    4.5 41    3.5 33    6.8 37    9.2 28    6.1 51    9.2 17    6.3 18    4.5 25    6 A) Give the Pearson coefficient.   B) Now that you found the answer to A, do you expect there to be a strong correlation?

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter7: Percents
Section7.4: The Percent Equation
Problem 28E
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The table below is a measure of how many ounces of caffeinated coffee a person drinks and how much sleep they get.  

Ounces of coffee    Hours of sleep.
22    8.9
24    6.3
38    5.9
22    6.8
19    7.4
35    6.4
28    7.2
19    7.6
27    8.9
28    9.3
25    5.4
18    6.1
35    4.3
33    8.1
28    5.8
17    6.3
25    4.8
32    5.4
18    7.5
22    6.8
25    4.7
35    6.5
41    4.2
18    7.3
51    6.8
18    5.9
32    8.1
27    4.1
38    5.8
41    6.4
52    7.7
18    9.4
34    4.5
41    3.5
33    6.8
37    9.2
28    6.1
51    9.2
17    6.3
18    4.5
25    6
A) Give the Pearson coefficient.

 

B) Now that you found the answer to A, do you expect there to be a strong correlation?

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