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Q. |
If ππ ΰ΅ ππ, ππ ΰ΅ ππ, and bxy = - 0.8, then the value of correlation coefficient (r) is |
A. | - 0.84 |
B. | - 0.96 |
C. | - 0.75 |
D. | 0.86 |
AnswerΒ» B. - 0.96 |
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