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    onsinyojared's Avatar
    onsinyojared Posts: 2, Reputation: 1
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    #1

    Dec 2, 2009, 12:37 AM
    Formulae of variance
    Calculate the variance and the standard deviation of the following classified data. 8.2, 8.3, 8.4, 8.5, 8.6, 8.7, 8.8, 8.9, 9.0, 9.1, 9.2, with their respective frequencies of 2, 6, 8, 1, 17, 17, 24, 18, 13, 10, 4,
    Unknown008's Avatar
    Unknown008 Posts: 8,076, Reputation: 723
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    #2

    Dec 2, 2009, 01:02 AM

    This is not the appropriate board to post this. Here is for biology.

    Your question should have been in the math-sciences section:
    https://www.askmehelpdesk.com/math-sciences/

    Anyway, the formula for variance is



    Where is the standard deviation and squaring it, you have the variance.

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