Question

Look at the cumulative frequency distribution table given below:

Monthly income	Number of families
More than ₹ 10000	100
More than ₹ 14000	85
More than ₹ 18000	69
More than ₹ 20000	50
More than ₹ 25000	37
More than ₹ 30000	15

Number of families having income range 20000 to 25000 is ______.

Options

• 19

• 16

• 13

• 22

Answer 1

Number of families having income range 20000 to 25000 is 13.

Explanation:

For “more than” cumulative frequencies,

Number in 20000 – 25000

= (More than ₹ 20000) – (More than ₹ 25000) 

= 50 – 37

= 13