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1. Calculate the standard deviation of the following distribution :
Class-Interval
: 10–20 20–30 30-40 40–50 50–60
Frequency
:
3
1
1
8
17
60-70
70-80
80–90
38
9
3.
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Hey
Step-by-step explanation:
Can u write the Frequency in correct way.. it's not at all understanding..
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