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[Steps Shown] 5.a) The coefficient of correlation between two variants X and Y is 0.6. Their covariance is 18. The variance of X is 25. Find the variance of

Question: 5.a) The coefficient of correlation between two variants X and Y is 0.6. Their covariance is 18. The variance of X is 25. Find the variance of Y series.

b) Given that the variance of x = 9 and the regression lines are 8x-10y+66 = 0, 40x-18y = 214. Find coefficient of correlation between x and y. Also find the standard deviation of y.

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[Steps Shown] 5.a) The coefficient of correlation between two variants X and Y is 0.6. Their covariance is 18. The variance of X is 25. Find the variance of

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