Question

The mean of data is 14 . Find P.​

Answer 1

ARITHMETIC MEAN OR MEAN OR AVERAGE :

The arithmetic mean of a set of observations is obtained by dividing the sum of the values of all observations by the total number of observations .

Mean = Sum of all the observations / Total number of observations .

MEAN = Σfixi / Σfi

[‘Σ’ Sigma means ‘summation’ ]

FREQUENCY DISTRIBUTION TABLE IS IN THE ATTACHMENT

From the table : Σfixi = (360 + 10p) ,Σfi = (24 + p )

MEAN = Σfixi / Σfi

Given : Mean = 14

14 = (360 + 10p) / (24 + p)

14 × (24 + p) = (360 + 10p)

336 + 14p= (360 + 10p)

14p- 10p= 360 - 336

4k = 24

P= 24/4 = 6

P= 6

Hence, the value of p is 6 .

Answer 2

Answer:

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Step-by-step explanation:

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