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The following is the distribution of weights (in kg) of 40 persons
Weight in kg 40-45 45-50 50-55 55-60 60-65 65-70 70-75 75-80
Number of persons 4 4 13 5 6 5 2 1
Construct a cumulative frequency distribution (of the less than type) table for the data above

Solution:

Given, the data represents the weight of 40 persons.

We have to construct a cumulative frequency distribution of the less than type table for the data.

Weight in kg

Number of persons 

Cumulative frequency

Less than 45

4

4

Less than 50

4

4 + 4 = 8

Less than 55

13

8 + 13 = 21

Less than 60

5

21 + 5 = 26

Less than 65

6

26 + 6 = 32

Less than 70

5

32 + 5 = 37

Less than 75

2

37 + 2 = 39

Less than 80

1

39 + 1 = 40

✦ Try This: The following is the distribution of weights (in kg) of few persons:

Weight in kg 40-45 45-50 50-55 55-60 60-65 65-70 70-75 75-80
Number of persons 3 3 11 6 7 4 2 4

Construct a cumulative frequency distribution (of the less than type) table for the data above.

☛ Also Check: NCERT Solutions for Class 10 Maths Chapter 14

NCERT Exemplar Class 10 Maths Exercise 13.3 Problem 9

The following is the distribution of weights (in kg) of 40 persons: Weight in kg 40-45 45-50 50-55 55-60 60-65 65-70 70-75 75-80 Number of persons 4 4 13 5 6 5 2 1. Construct a cumulative frequency distribution (of the less than type) table for the data above

Summary:

The cumulative frequency distribution of the less than type table for the data is mentioned above

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