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Dispersion and Variance
Hard
Variance and Standard Deviation Frequency
Compute variance and standard deviation for the following data.
C.I.
45-55
55-65
65-75
75-85
85-95
95-105
105-115
115-125
f
7
20
27
23
13
6
3
1
SELECT ONE OPTION
A
235, 17
B
235, 19
C
225, 15
D
325, 15
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