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21 October, 16:42

What is the standard deviation of 111, 132, 186

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  1. 21 October, 20:13
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    The mean:

    111+132+186

    429/3=143

    Subtract mean:

    111-143 = - 32² = 1,024

    132-143=-11² = 121

    186-143 = 43² = 1,849

    Now find the mean again:

    1,024+121+1,849

    2,994/3 = 998

    Now square root:

    √998≈31.591138
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