Frequency Distribution


Data Handling - Concepts
Class - 6th Foundation NTSE Subjects
 
 
Concept Explanation
 

Frequency Distribution

Frequency:

The number of times a particular observation occurs in a given data is called its frequency of an observation.The observation having maximum frequency is known as mode.

Illustration: In a data 7,6,5,5,4,3,2,2,5,1,3 find the frequency of 5.

Solution: Here the frequency of 5  in this data is 3.

Frequency Distribution: 

The tabular arrangement of data sharing their corresponding frequencies is called a frequency distribution. Frequency tells you how often something happened. The frequency of an observation tells you the number of times the observation occurs in the data.

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Sample Questions
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Question : 1

Find the frequency of Class 20-40 by using the given data:

Class SizeFrequency
20-408
40-604
60-807
80-1009
100-1202
Total32
Right Option : B
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Question : 2

A random survey of numbers of children of various age group playing in a park was found as follows:

Age Group1-22-33-55-77-1010-1515-17
No of Children536129104

Then the number of children playing between the age group of 10-15 years are ________________.

Right Option : D
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Question : 3

30 children were asked about the number of hours, they watched TV programs in previous week. The results are as follows: 1, 6, 2, 3, 5, 12, 5, 8, 4, 8 10, 3, 4, 12, 2, 8, 15, 1, 17, 6, 3, 2, 8, 5, 9, 6, 8, 7, 14, 12. How many children watch TV more than 15 hours?

Right Option : C
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