Answer :

In a frequency distribution, the number of observations in a class is called the : Class frequency

The word frequency refers to the no. of times an observation occurs.

Frequency distribution : A graph or data set organized to show the frequency occurred of each possible outcome of events .

for example : Electron returns and test scores listed in percentile.

A frequency distribution can be graphed as a pie chart or histogram.

To know more about the frequency distribution:

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