CBSE BOARD X, asked by akhil12121212, 10 months ago

find the mean of the following frequency distribution CLASS =0-20, 20-40, 40-60, 60-80, 80-100 FREQUENCY = 17, 28, 32, 24, 19 respectively By assumed mean method.. please

Answers

Answered by dhwani1324

1

Math exam is over...!!!

Answered by sriraamsanjay

0

i can't draw the table but.....

xi values >10,30,50,70,90

a= 50

di values> -40,-20,0,20,40

fidi values>-680,-560,0,480,760

mean= a + Σ fidi/Σfi

=50+0/fi ......(doesn't matter since numerator is 0)

mean = 50 .......

according to my calculations

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