We have a dataset with numbers from 10 to 99. We will call the first digit, the digit that corresponds to the tens, 'stem', and the second digit will be called 'leaf'. For example, for the number 32, the 3 will go in the stem column and the 2 will go in the leaf column.
The stem and left table we get after repeating this process with each number in the data set is:
Notice that the leaves are not written in order from smallest to largest since the problem says it is not necessary.