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Mathematics
Guillermo Wheeler
Yesterday, 16:42
What is the standard deviation of 111, 132, 186
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Maleah Joyce
Yesterday, 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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