6. The following sample contains the scores of 6 students selected at random in Mathematics and English. Use the scores in English as the dependent variable Y. Mathematics score (X) English score (Y) 70 92 74 84 80 63 74 87 65 78 83 c) Find the sample correlation coefficient r and interpret. 90 Σx=464, Σ y=476, Σ x²=36354, Σy²=38254, Σ xy=36926.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter10: Sequences, Series, And Probability
Section10.8: Probability
Problem 31E
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6. The following sample contains the scores of 6 students selected at random in
Mathematics and English. Use the scores in English as the dependent variable Y.
Mathematics
score (X)
English score
(Y)
70
74
92
80
74 65 83
84 63 87 78 90
Σ æ=464, Σy=476, Σ w2 -36354, Σy-
X
-38254, Σæy=36926.
c) Find the sample correlation coefficient r and interpret.
Transcribed Image Text:6. The following sample contains the scores of 6 students selected at random in Mathematics and English. Use the scores in English as the dependent variable Y. Mathematics score (X) English score (Y) 70 74 92 80 74 65 83 84 63 87 78 90 Σ æ=464, Σy=476, Σ w2 -36354, Σy- X -38254, Σæy=36926. c) Find the sample correlation coefficient r and interpret.
O- 0.2397 and the relationship between x and y is weak
0.2397 and the relationship between x and y is strong
O-0.2397 and the relationship between x and y is strong
0.2397 and the relationship between x and y is weak
Transcribed Image Text:O- 0.2397 and the relationship between x and y is weak 0.2397 and the relationship between x and y is strong O-0.2397 and the relationship between x and y is strong 0.2397 and the relationship between x and y is weak
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