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Learn how to calculate frequency density from a grouped frequency table and use it to plot histograms. Find examples, worksheets and common misconceptions about frequency density.
What is frequency density? Frequency density is given by the formula; Frequency density is used with grouped data (class intervals) it is particularly useful when the class intervals are of unequal width; it provides a measure of how spread out data within its class interval is, relative to its size; For example,
Learn how to calculate frequency density, the area of a histogram bar, using a simple formula. See examples of how to use the formula to find missing values in tables and histograms.
Learn how to draw histograms by calculating frequency density and how to use them to interpret different distributions. A histogram is a way of representing data with bars of unequal width, where the area of each bar shows the frequency density.
Learn what frequency density is and how to calculate it for grouped data. See how to draw histograms with frequency density and relative frequency density axes.
One of you asked me to help solving the following exam question involving mode, median and mean. I will also explain to you how to calculate the mean when given a grouped frequency table. Finally you will learn what a histogram is and what is meant with frequency density.
Frequency density tells us the ratio of a frequency of a class to its width. We can calculate frequency density by using the formula that frequency density is equal to frequency over the class width.
