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    Correlation

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    1. Which is the weakest correlation?
    a. +0.76
    b. +0.21
    c. -0.01
    d. -0.88

    2. What would a correlation of .35 would be called?
    a. Moderate
    b. Weak
    c. Very Strong
    d. Very Weak

    3. Which correlation coefficient indicates the strongest relationship?
    a. 0.00
    b. +0.50
    c. -0.70
    d. +0.60

    4. Which of the following shows an example of how a correlation coefficient may be written?
    a. RXRY=0.45
    b. rXY=0.26
    c. XYCc=0.67
    d. rxy=0.53

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    Solution Preview

    Please see attached file
    1.  Which is the weakest correlation?
        a.  +0.76
        b.  +0.21
        c.  -0.01
        d.  -0.88

    Answer:     c.  -0.01

    Strength of correlation is indicated by coefficient of determination;
    Coefficient of determination is the square of coefficient of correlation
    Coefficient of correlation Coefficient of determination
    0.76 0.5776
    0.21 0.0441
    -0.01 0.0001
    -0.88 0.7744

    The weakest correlation ...

    Solution Summary

    Answers MCQ on correlation.

    $2.49

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