# HISTOGRAM

### Most simple graph

## How to create one

**Using a ruler, draw out the basic axes.***These are the vertical and horizontal lines that form basic outline of the histogram***Measure out the groups.***so you'll need to make set marks along your lower axis***Measure out the vertical axis.***The vertical axis in a histogram is always for frequency. What measure of time is necessary, though, is up to your data of course*

## PROS & CONS

PROS:* Good for helping you get an understanding of the distribution of data*

CONS: *Pick the wrong groupings and it can change the way you see the data. May want to try multiple groupings/categories.*

## FEATURES

*Generally a histogram will have bars of equal width, although this is not the case when class intervals vary in size. Choosing the appropriate width of the bars for a histogram is very important. As you can see in the example above, the histogram consists simply of a set of vertical bars. Values of the variable being studied are measured on an arithmetic scale along the horizontal x-axis*