Question

5. In a retail market, fruit vendors were selling mangoes kept in packing boxes. These
boxes contained varying number of mangoes. The following was the distribution of
mangoes according to the number of boxes.
Number of mangoes
50 - 52
53 - 55
56 - 58
59 - 61
62 - 64
Number of boxes
15
110
135
115
25
Find the mean number of mangoes kept in a packing box. Which method of finding
the mean did you choose? assuming method
​

Answer 1

Number of number of xi fixi

mangoes boxes

50-52 15 51 765

53-55 110 54 5940

56-58 135 57 7695

59-61 115 60 6900

62-64 25 63 1575

Σf

i

=400 Σf

i

x

i

=22875

x

ˉ

=

Σf

i

Σf

i

x

i

=

400

22875

=57.1875

Hence, the mean number of mangoes kept in a packing box is 57.1875.