Question

How do you work a leaf-and-stem plot

Answer 1

A stem and leaf plot is a special table where each data value is split into a "stem"(the first digit or digits) and a "leaf"(usually the last digit).

Answer 2

The column on the left for stands for tens and the column on the right stands for ones.

1  2,3,4,5
2  2,3,4,5
3  2,3,4,5

the numbers represented there are 12, 13, 14, 15, 22, 23, 23, 25, etc.