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    Standard Deviation

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    61. According to Forrester Research Inc., approximately 19% of Internet users play games online. The following data show the number of unique users(in thousands) for the month of March for 10 game sites(The Wall Street Journal, April 17, 2000).

    Site -Unique User
    AOLGames.aol -9416
    Extremelotto.com -3955
    Freelotto.com -12901
    Gamesvill.com -4844
    Iwin.com -7410
    Prizecentral.com -4899
    Shockwave.com -5582
    Speedyclick.com -6628
    Uproar.com -8821
    Webstakes.com -7499

    Using these data compute the mean, median, variance, and standard deviation.

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    https://brainmass.com/statistics/quantative-analysis-of-data/standard-deviation-approximation-21241

    Solution Summary

    61. According to Forrester Research Inc., approximately 19% of Internet users play games online. The following data show the number of unique users(in thousands) for the month of March for 10 game sites(The Wall Street Journal, April 17, 2000).

    Site -Unique User
    AOLGames.aol -9416
    Extremelotto.com -3955
    Freelotto.com -12901
    Gamesvill.com -4844
    Iwin.com -7410
    Prizecentral.com -4899
    Shockwave.com -5582
    Speedyclick.com -6628
    Uproar.com -8821
    Webstakes.com -7499

    Using these data compute the mean, median, variance, and standard deviation.

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