Question

Calculate the missing frequency form the following distribution, it being given that the median of the distribution is 24.
Age in years: 0-10 10-20 20-30 30-40 40-50
No.of persons: 5 25 ? 18 7

Answer 1

Missing frequency = 25

Given:

Age in years: 0-10    10-20    20-30   30-40    40-50

No.of persons: 5         25         ?            18           7

Median of the distribution is 24.

To find:

Missing frequency form the following distribution.

Explanation:

• Let missing frequency be x.
• See the table below attached.
• The given median = 24
• The median class is 20-30
• Lower frequency (L) = 20, Difference(h) = 10, N=55+x, f=x and cf=30

• $Median = L + (\frac{\frac{N}{2} -\ cf}{f})\times h$

• By putting the value and solving above equation we get x = 25.

To learn more...

1. The following is the distribution of height of students of certain class in a certain city: Find the average height of maximum number of students.

Height(in cms): 160-162 163-165 166-168 169-171 172-174

No.of students: 15 118 142 127 18

brainly.in/question/15924910

2. The following is the distribution of height of students of certain class in a certain city: Find the average height of maximum number of students.

Height(in cms): 160-162 163-165 166-168 169-171 172-174

No.of students: 15 118 142 127 18

brainly.in/question/15924910