std 98,92,92,90,86,86,84,82,82,82,82,80,80,76,74,74,72,70,66,60,52

解答

标准差

98, 92, 92, 90, 86, 86, 84, 82, 82, 82, 82, 80, 80, 76, 74, 74, 72, 70, 66, 60, 52

11.02032 \dots

求解步骤

计算方差:

121.44761 \dots

计算

σ (X) = i = 1 \sum n \frac{( x _{i} - x ˉ ) ^{2}}{n - 1} : 11.02032 \dots

11.02032 \dots

p (9, 3)

r an g e 8, 9, 11, 5, 10, 13, 4, 7, 9, 13, 12

or d er 67, 62, 42, 41, 52, 51, 69, 66, 60, 43, 54, 58, 42, 53, 59, 49

m o d e 1, 2

f (C) = 5 C^{2}