Frequency Table Variance (Jee Mains) | ExamDuo
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Dispersion and Variance
Medium
Frequency Table Variance
The frequency distribution table is given here.
Find the variance.
Class
30-40
40-50
50-60
60-70
70-80
80-90
90-100
Frequency
3
7
12
15
8
3
2
SELECT ONE OPTION
A
205
B
203
C
201
D
204
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