Question

Find the missing frequencies un the following distribution table if the total frequency is 70 and median is 35

Answer 1

Answer:

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Step-by-step explanation:

Class interval frequency cumulitative frequency

 0−10 2 2 10−20 3 5 20−30

 x 5+x 30−40 6 11+x 40−50 5 16+x 50−60 3 19+x 60−70 2 21+x

Total frequency= 21+x

=>   N=21+x

=>  2N=221+x

So; CF corresponding to this is 11+x

And class corresponds to this is  30−40

So, l=30  ,  F=5+x  ,  f=6  and  h=10

Median=l+⎝⎜⎜⎛f2N−F⎠⎟⎟⎞×h

=>  35=30+

Answer 2

Answer:

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