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    Question

    Find the variance of the numbers 13, 16, 22,

    17.
    A 10.5 Correct Answer Incorrect Answer
    B 13.5 Correct Answer Incorrect Answer
    C 23.2 Correct Answer Incorrect Answer
    D 11.5 Correct Answer Incorrect Answer

    Solution

    Find the Mean : Add all the numbers and divide by how many there are: Find Differences from the Mean : Subtract the mean from each number and square the result:

    Find the Average of the Squared Differences: Add these squared differences and divide by the number of values:

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