![]() The numbers are listed backwards because they are listed so that the larger numbers are furthest from the stem. The 0 in the stem shows that there is nothing in the tens column. These numbers are entered as 9 6 3 2 1 |0|. Step 3: The final digits in data set 1 are listed to the left of the stem, getting larger as they get further from the stemįor example, entering the numbers with zero tens from team 1: we enter 1, 2, 3, 6 and 9. It has 3 tens and so, the numbers in the stem will be listed from 0 up to 3. It has zero tens and so, a 0 is written in the stem. The ones digits of each number will go in the leaves. The digits listed in the stem will be the tens digits of each number. ![]() Step 2: All apart from the final digit of each number is listed so that they appear in the central stem once Step 1: Put the numbers in each data set in order from smallest to largest The stem and leaf plot shows the number of goals scored by each team over the season. The final digits in data set 2 are listed to the right of the stem, getting larger as they get further from the stem.įor example, construct a back-to-back stem-and-leaf plot for the data shown.The final digits in data set 1 are listed to the left of the stem, getting larger as they get further from the stem.All apart from the final digit of each number is listed so that they appear in the central stem once.Put the numbers in each data set in order from smallest to largest.To make a back-to-back stem-and-leaf diagram: How to Draw a Back-to-Back Stem-and-Leaf Diagram Since the 2 is in the right leaf, the number is read forwards. ![]() The digit of 7 is in the left leaf and so, it is read backwards. The key on a stem-and-leaf plot illustrates an example.įor example, 7 |1| means 17. On a back-to-back stem and leaf plot, a key is drawn to help explain how to read the diagram. The 5 shown in line with the 1 stem represents 15. In this example, the stem tells us the tens digit of each number and the numbers in the leaves tell us the ones digit.įor example, the 7 shown in line with the 2 in the stem represents 27. The back-to-back stem-and-leaf plot below shows the data comparing the test scores of two classes. The data is ordered so that the larger values are further from the stem. The ‘stem’ is shared by both sets of data which are listed in the ‘leaves’ to the left and right of the stem respectively. ![]() What is a Back-to-Back Stem-and-Leaf Plot?Ī back-to-back stem-and-leaf plot is used to compare two data distributions. ![]()
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