statistics

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For a population with µ = 70 and ó = 20, find the z-score that corresponds to each of the following X-values

  • statistics -

    Use z-score formula:

    z = (x - mean)/sd

    mean = 70
    sd = 20

    Substitute the values you have into the formula to find z-scores.

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    I do not understand this. Can you please explain it to me and how I am suppose to get the answer?

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