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    Question

    For two correlated variables x and y, if

    coefficient of correlation between x and y is 0.8014, variance of x and y are 16 and 25 respectively. Then the covariance between x and y is: 
    A 162.08 Correct Answer Incorrect Answer
    B 162.08 Correct Answer Incorrect Answer
    C 16.028 Correct Answer Incorrect Answer
    D 160.28 Correct Answer Incorrect Answer
    E 16.208 Correct Answer Incorrect Answer

    Solution

      Put the given values in formula to get the value of covariance. Cov =(¼)*(1/5)*(0.8014) = 16.028

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