Math, asked by 10cprarthibisbasotra, 6 months ago

if mean of any distribution is 25.4 and Ef= 52+f and Efx= 1397 find F​

Answers

Answered by Syamkumarr
0

Answer:

The answer is 3

Step-by-step explanation:

Given data:

mean of any distribution  = 25.4

                                   ∑f = 52+f

                                 ∑fx = 1397      

mean of the data =  ∑fx/ ∑f

                              = 1397/52+f

from given data  \frac{1397}{52+f} = 25.4    

                           1397 = 25.4(52+f)

                           1397 = 1320.8+ 25.4f

                           25.4f = 1397 - 1320.8

                          25.4 f = 76.2  

                                   f = 3

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