# Stem and Leaf Plots

### Showing the Shape of the data
for a variable

The **bell-shape** curve is the most common.

The **U-shaped** curve is often two bell-shaped curves next
to each other. This might mean the data you have plotted can be
split into two groups. What two groups might you split the weight
of children and their fathers into?

The **J-shaped **plot** **is not as common. As you see
in the example above, the plot looks like a portion of the bell-shaped
curve and occurs because the data values cannot go above or below
a certain value, in our case the numbers of movies a person watched
must be greater than zero.

The **rectangular, or uniform, **occurs becaues there are
upper and lower limits on the possible values for the data and
the data values are equally spread through that range.

**Return**