What is the std of 31,34,28,37,35,30,29 ?

The std of 31,34,28,37,35,30,29 is 3.36650…

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std of 31,34,28,37,35,30,29

standard deviation

31, 34, 28, 37, 35, 30, 29

3.36650 \dots

Solution steps

Compute the variance:

11.33333 \dots

Compute

σ (X) = i = 1 \sum n \frac{( x _{i} - x ˉ ) ^{2}}{n - 1} : 3.36650 \dots

3.36650 \dots

1 n C r 1

12 n C r 3

12, 7, 12, 9, 2, 15, 6, 6, 6, 1, 11

62.3, 21, 5.4, - 23.2, - 12.6, 120.6

54, 55, 59, 61, 61, 62, 68, 70, 72

What is the std of 31,34,28,37,35,30,29 ?
The std of 31,34,28,37,35,30,29 is 3.36650…