Frequency Distribution
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.
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 between 10-15 hours? | |||
| Right Option : C | |||
| View Explanation | |||
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 5-7 years are:
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| Right Option : C | |||||||||||||||||||
| View Explanation | |||||||||||||||||||
Tally marks are used to find which of the following? | |||
| Right Option : A | |||
| View Explanation | |||
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