A frequency is nothing more than a count.

And a relative frequency is a percentage.

Thus if we have a sample of 10 marbles we may count

4 red marbles

3 green marbles

2 blue marbles

1 yellow marble

The 4,3,2,1 are their counts or

*frequencies*and their relative frequency would be the percentage they represent of the sample of 10.

We find a percentage dividing the count by the sample size, like

4/10 = 0.4 or 40%

4/10 = 0.2 or 30%

4/10 = 0.3 or 20%

4/10 = 0.1 or 10%

Data like this is often seen in the form of a bar chart, or a pie chart and is one of the most popular ways to present data for drawing conclusions.

## No comments:

Post a Comment