Question

The different age group people go for a morning walk. The age of 20 people who go for a morning walk is as follows:

19, 15, 34, 45, 69, 74, 24, 67, 77, 89, 91, 45, 65, 35, 56, 67, 55, 23, 78, 52

The Grouped frequency distribution table of above will be:

(A) 

S. No	Class	Frequency
1	0-20	2
2	20-40	4
3	40-60	5
4	60-80	7
5	80-100	2

(B) 

S. No	Class	Frequency
1	0-20	3
2	20-40	3
3	40-60	5
4	60-80	6
5	80-100	3

(C)

S. No	Class	Frequency
1	0-20	2
2	20-40	4
3	40-60	5
4	60-80	5
5	80-100	4

(D)

S. No	Class	Frequency
1	0-20	2
2	20-40	7
3	40-60	2
4	60-80	7
5	80-100	2

1. (C)
2. (D)
3. (B)
4. (A)

Answer 1

Correct Answer - Option 4 : (A)

Concept used:

In statistics, a frequency distribution is a list, table or graph that displays the frequency of various outcomes in a sample. Each entry in the table contains the frequency or count of the occurrences of values within a particular group or interval

Calculation:

The number of people with age group less than 20 = 2 i.e (15, 19)

The number of people with age group  between 20 and 40 = 4 i.e (34, 24, 35, 23)

The number of people with age group between 40 and 60 = 5 i.e (45, 45, 56, 55, 52)

The number of people with age group between 60 and 80 = 7 i.e (69, 74, 67, 77, 65, 67, 78)

The number of people with age group between 80 and 100 = 2 i.e (89, 91)

∴ The correct answer is

(A) 

S. No	Class	Frequency
1	0-20	2
2	20-40	4
3	40-60	5
4	60-80	7
5	80-100	2