Math, asked by pawan5055, 1 year ago

if the mean of following frequency distribution is 21 find the value of p​

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Answered by sophia38
3

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Answered by amitnrw
0

Given : Mean of the distribution is 21

To Find:  Value of the P

Solution:

x             d= x- Mean           f               df

10            -11                         3              -33

15            -6                        10              -60

20           - 1                        p                -p

25            4                        7                 28        

35           14                        5                 70

                                                        -p + 5

 -p + 5 = 0

=> p = 5

Hence value of the p is 5

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