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    The Statistics of Song-Playing

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    A random sample of a song playing times in seconds is as follows:
    242, 231, 220, 213, 230, 293

    1. Find the standard deviation

    2. Are any of these playing times considered unusual?
    Does this differ with your intuition? Explain.

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    1. Solution:

    The formula for Sample Standard Deviation:
    s=SQUARE ROOT[ [1/(n-1)][?((xi-x sample mean)^2)] ]

    Here, the mean is given as:
    ?x = ...

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    This solution helps with a problem regarding the statistics of song playing.