# If the mean of th

For equal class intervals, we will solve by finding mid points of these classes using direct method.

We have got

Σfi = 39 + p and Σfixi = 2370 + 30p

mean is given by

( given: mean of pocket allowance is 54)

2106 + 54p = 2370 + 30p

54p – 30p = 2370 – 2106

24p = 264

p = 11

Thus, p is 11.

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