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A population of N=8 scores has a mean of µ = 20. If one score is changed from X=14 to X=50, what will be the value for the new mean?

  • statistics - ,

    Mean = Σ(scores)/N

    20 = x/8

    160 = Σ(scores)

    With 36 additional points, Σ(scores) = 196

    New Mean = 196/8

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