What is the standard deviation of 111, 132, 186

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asked Mar 2, 2019 129k views

1 Answer

Yguw · Answer 1 · 2019-03-06T20:27:47+0000

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

What is the standard deviation of 111, 132, 186

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