Frequency Distribution
Frequency Distribution
Frequency Distribution:
Frequency table or frequency distribution is a method to present raw data in the form, from which on can easily understand the information contained in the raw data. Frequency distributions are of two types:
Discrete Frequency Distribution :
The process of preparing this type of distribution is very simple. The construction of a discrete frequency distribution from the given raw data is done by the use of the method of tally marks. In the first column of the frequency table we write all possible values of the variable from the lowest to the highest.
Illustration : Draw a discrete frequency distribution of the number of children in 20 families: 1,1,2,3,4,3,2,1,1,4,5,2,4,2,2,1,3,3,2,5
Solution : The data may be put in the form of a discrete frequency distribution as follows:
|
No. of children |
Tally bars |
Frequency |
| 1 |  |
5 |
| 2 |  |
6 |
| 3 | IIII | 4 |
| 4 | III | 3 |
| 5 | II | 2 |
A random survey of numbers of children of various age group playing in a park was found as follows: Children playing between the age group of 7-10 years are:
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| Right Option : A | |||||||||||||||||||
| View Explanation | |||||||||||||||||||
Tally marks are used to find which of the following? | |||
| Right Option : A | |||
| View Explanation | |||
Find the frequency of Class 20-40 by using the given data:
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| Right Option : B | |||||||||||||||||
| View Explanation | |||||||||||||||||
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8thAbhyas institute is one of the best coaching institute in the vicinity of Ambala Cantt area. The teachers of the institute are well experienced and very helpful in solving the problems of the students.The good thing of the institute is that it is providing extra classes for the students who are w...
