Question

Construct a​ stem-and-leaf plot of the test scores 67 comma 72 comma 86 comma 75 comma 89 comma 89 comma 87 comma 90 comma 99 comma 100. How does the​ stem-and-leaf plot show the distribution of these​ data?

Answer 1

Given the values: 67,72,86,75,89,89,87 ,90 ,99 and 100.

To create a stem and leaf plot

We place the first digit in the Stem Column and the Second digit in the plot column.

Stem-and-leaf plot of the test scores

`\left|\begin{array}cStem&Leaf\\---&--&--&--&--\\6&7&\\7&2&5\\8&6&7&9&9\\9&0&9\\10&0\end{array}\right|`

The stem and leaf plot enables us at a glance to see the values or range of the values that are most prevalent.

From the above stem and leaf plot, we can see that values in the range of 80-89 are most prevalent.