2. Find the variance and standard deviation. Class Limits Frequency (f) 4 69-77 78-86 87-95 96 - 104 105 - 113 114-122 6 11 8 5 9 n = 43 Midpoint (x) x² [fx = fx [fx² = fx²

MATLAB: An Introduction with Applications
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2. Find the variance and standard deviation.
+
Class Limits Frequency Midpoint
(f)
(x)
4
69-77
78-86
87-95
96 - 104
105-113
114-122
6
11
8
5
9
n = 43
x²
[fx =
fx
[fx² =
fx²
Transcribed Image Text:2. Find the variance and standard deviation. + Class Limits Frequency Midpoint (f) (x) 4 69-77 78-86 87-95 96 - 104 105-113 114-122 6 11 8 5 9 n = 43 x² [fx = fx [fx² = fx²
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