Math Statistics

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I am stuck can someone help me

19.2 - 21.1
----------
3.18
\/25

  • Math Statistics -

    I'm assuming your problem is this:

    (19.2 - 21.1)/(3.18/√25)

    Calculating:
    (-1.9)/(3.18/5) =
    (-1.9)/(0.636) =
    -2.99 (rounded to two decimal places)

    I hope this helps and is what you were asking.

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