Q. 215.0( 1 Vote )
If the mean of the following distribution is 27, find the value of p.
We have got
Σfi = 43 + p and Σfixi = 1245 + 15p
∵ mean is given by
⇒ (∵ given: mean of pocket allowance is 27)
⇒ 1161 + 27p = 1245 + 15p
⇒ 27p – 15p = 1245 – 1161
⇒ 12p = 84
⇒ p = 84/12
⇒ p = 7
Thus, p = 7
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