if the mean of the observation is 12 .
find the value of
0-10
2
10-20
3
20-30
f
30-40
5
40-50
6
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Answer:
The answer is 4
Step-by-step explanation:
Mean=Sum.of . observations
/N.o of observations
=Average
In between of 0 to 10 there are total 10 observations
Average is 45
so /10
9/2
apox.2