Question

12. From the frequency distribution given below calculate arithmetic mean by both
direct as well as short-cut method :
C.I.
0-5 5-10 10-15 15-20 20-25 25-30 30-35
f
5
10
20 35
15
1
​

Answer 1

Answer:

ITS 31

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Step-by-step explanation:

Answer 2

Answer:

the frequency of distribution below the arthmetic mean by both