Stem and Leaf plot shows exact value of individual observation. It uses ungrouped data. Stem and Leaf plot used to organizing numerical data to show its distribution.
It splits each data value into two parts: the "stem," which represents the leading digit(s), and the "leaf," which represents the trailing digit(s).
Steps to draw Stem and Leaf plot:
1) Divide each value of the observation into two parts. One part consisting of one or more digits as stem and rest digits as leaf.
2) The stem values are listed on the left of the vertical line and each leaf value corresponding to the stem is written in horizontal line to the right of the stem in the increasing order.
3) The stem and the leaf display give us the ordered data and the shape of the distribution.
Example:
Display the given data as stem and leaf
42, 53, 65, 63, 61, 77, 47, 56, 74, 60, 59, 45, 42, 56, 73
Solution:
Let’s arrange the given data in ascending order
42, 42, 45, 47, 53, 56, 59, 60, 61, 63, 65, 73, 74, 77
