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    Question

    Given that 3x-2y+297 = 0. SD(X) / SD(Y) = 4/3 Find r?

    A 1 Correct Answer Incorrect Answer
    B 0.5 Correct Answer Incorrect Answer
    C 0.3 Correct Answer Incorrect Answer
    D 2 Correct Answer Incorrect Answer
    E 0.2 Correct Answer Incorrect Answer

    Solution

    bxy = r { SD(X) / SD(Y)} Now, 3x = -297 + 2y X = -297/3 + 2/3 y bxy = 2/3 so, bxy = r { SD(X) / SD(Y)} 2/3 = r {4/3} r = ½ = 0.5

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