Math, asked by sarthak535, 1 year ago

find the mean of the following distribution
classes 25-29 30-34 35-39 40-44 45-49 50-54 54-59
frequency 14 22 16 6 5 3 2


plz ... urgent h...plz....fasttttt

Answers

Answered by lalitameena2003
20

let the assume mean A= 42

class Mid value X D=x-42 U=x-42/5 f F u  

25-29 27                     -15       -3       14 -42

30-34 32                      -10        -2       22 44

35-39 37                      -5        -1       16 -16

40-44 42                        0          0         6 0

45-49 47                        5          1         5 5

50-54 52                       10           2         3 6

55-59 57                        15            3          4 12

N=70 F u=-79

A=42 , n=5

Mean=a+n x (f u / n)

=42+5(-79/70)

=42+(-395/70)

=42-5.643

=36.357

Step-by-step explanation:

Answered by kamaleshkamalesh140
2

Answer:

I hope it helps you

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