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March 25, 2017

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One sample of n=20 scores has a mean of M=50. A second sample of n=5 scores has a mean of Mean=10. If the two samples are combined, what is the mean

  • Statistics - ,

    Mean =∑x/n

    50 = ∑x/20

    ∑x = 100

    10 = ∑x/5

    ∑x = 50

    Mean = 150/25 = ?

  • Statistics - ,

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