Question

find the medium 0-10 10-20 20-30 30-40 40-50 50-60 60-70 and its sequence is 4.4. 7.12.8. 5 respectively

it solution no only ans

Answer 1

Hiii friend,


CI = [ 10-20] [ 20-30] [30-40] [ 40-50] [50-60]

F = [ 15 ] [ 30 ] [ 45 ] [ 12 ] [ 18 ]

Now,


Maximum class frequency is 45

Modal class = 30-40

Lower limit of madal class (Xk) = 30

Frequency of the modal class (Fk) = 45

Frequency of the class preceding the modal class (Fk-1) =30

Frequency of the class succeeding the modal class ( Fk+1) = 12

Class size (H) = 10.

Therefore,

Mode = Xk+(Fk-Fk-1)
********* ______ × H
***********2Fk - Fk-1 - Fk+1


=>. 30 + (45-30/90-30-12) × 10

=> 30 + 150/48


=> 30 + 75/24

=> 30 + 3.12


=> 33.12

HENCE,


MODE = 33.12



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