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Frequency & Frequency Distribution

                                                  FFrequency& Frequency Distribution
It tells how often something happened.The frequency of an observation tells you the number of times observation occur in the data. For e.g, the frequency of number  5 is 4. ,5,2,5,6,5,2,4,5,8,5.


Frequency Distribution:
It is representation of data or you can say observation within the given interval.

Example: Newspapers

These are the numbers of newspapers sold at a local shop over the last 10 days:

22, 20, 18, 23, 20, 25, 22, 20, 18, 20

Let us count how many of each number there is:

Papers SoldFrequency
182
190
204
210
222
231
240
251

Papers SoldFrequency
15-192
20-247
25-291

Grouped Frequency Data:
When the data is sorted and classified into classes, then it is called as Grouped frequency data.
For e.g. you can refer to this: https://www.statisticshowto.com/grouped-data/.





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