Question

8) If the arithmetic mean of the data given below is 28, find
a) Missing frequency
b) Median of the series
Profit per retail shop Number of retail
in Rs.
shops
0-10
12
10-20
18
20-30
27
30-40
?
40-50
17
50-60
6​

Answer 1

so the answer is 37

Explanation:

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