Question

Q1 - The mean of the following frequency distribution is 57.6 and the total no. of observation is 50.
Class Interval : 0-20, 20-40 , 40-60 , 60-80 , 80-100 , 100-120.

Frequency : 7 , Fi , 12 , F2 , 8 , 5

find the fi and f2
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Answer 1

Answer:

F1=05

and F2= 13

Step-by-step explanation:

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