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Question

For finding mean by assumed mean method

 ¯¯¯x = a + (f×d)f 

Find the physical representation of a,d and f.


Solution

In assumed mean method ,  ¯¯¯x = a + (f×d)f 

where ,

a is the assumed mean                                                

d is the deviation from assumed mean ie xi -a                                              

f is the frequency 

                                               

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