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Q. |
When Var (x) = 2.25, Var (y) = 1 and Cov (x, y) = 0.9, then correlation coefficient is |
A. | 0.45 |
B. | 0.8 |
C. | 0.6 |
D. | 0.75 |
Answer» C. 0.6 |
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