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21 December, 21:05

What is the variance of the data set?

9, 7, 6.5, 7.5, 7, 8, 5, 6, 7.5, 8

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  1. 22 December, 00:40
    0
    variance = 1.1525

    (∑x² - (∑x) ²/n) / n

    where n = number of data set = 10
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