Question

if the mean of the following data is 20.2 find the value of P. x=10,15,20,25,30. f=6,8,p,10,6

Answer 1

Given,
         f)=6,8,p,10,6
         x)=10,15,20,25,30
also mean=20.2
 so,
∑fixi/∑fi=20.2

now,
∑fixi=(10*6)+(15*8)+(20*p)+(25*10+)(30*6)
       =610+20p
now ∑fi=6+8+p+10+6
             =30+p
   
         ∑fixi/∑fi=20.2
         610+20p/30+p=20.2
          20.2(30+p)=610+20p
          606+20.2p=610+20p
                20.2p-20p=610-606
                     0.2p=4
                         p=4/0.2
                         p=20 
 
                             HOPE IT HELPED U!!!!!!!!

Answer 2

Hi there!

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What is Mean?

The average of a given set of numbers is called the Arithmetic mean, or simply the mean, of the given numbers.

Mean = $\frac{Sum \: of \: observations }{Number \: of \: observations }$

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For your solution to the given question refer to the attachment.

Thanks for the question!

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