The data below comprises of the number of hours (X) studied and the exam grade (Y) obtained for 6 first year students registered at UWC. Calculate the correlation coefficient (rounded off to four decimals). X 2 5 1 2 3 3 Y (%) 73 90 60 80 89 87 SSxy = 66.6667 SSx = 9.3333 SSy = 678.8333 = 2.6667 = 79.8333 b = 7.1592 A. 0.7015 B. -0.9865 C. 0.3106 D. 0.8375
The data below comprises of the number of hours (X) studied and the exam grade (Y) obtained for 6 first year students registered at UWC. Calculate the correlation coefficient (rounded off to four decimals). X 2 5 1 2 3 3 Y (%) 73 90 60 80 89 87 SSxy = 66.6667 SSx = 9.3333 SSy = 678.8333 = 2.6667 = 79.8333 b = 7.1592 A. 0.7015 B. -0.9865 C. 0.3106 D. 0.8375
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 2BGP
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Question
The data below comprises of the number of hours (X) studied and the exam grade (Y) obtained for 6 first year students registered at UWC. Calculate the
X |
2 |
5 |
1 |
2 |
3 |
3 |
Y (%) |
73 |
90 |
60 |
80 |
89 |
87 |
SSxy = 66.6667 |
SSx = 9.3333 |
SSy = 678.8333 |
= 2.6667 |
= 79.8333 |
b = 7.1592 |
- A.
0.7015
- B.
-0.9865
- C.
0.3106
- D.
0.8375
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