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If the two regression coefficients are and , then the value of coefficient of correlation will be:
If the two regression coefficients are $0.8$ and $0.2$, then the value of coefficient of correlation $r$ will be:
- (a)$\pm 0.4$
- (b)$\pm 0.16$
- (c)$0.4$
- (d)$0.16$
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From ISC 2023 Mathematics Paper 1, question 19(ii).