STEM AND LEAF

Objectives 

1. Knowing how to use stem and leaf formula 

2. Using stem and leaf in mean, median, mode.

What is Stem and Leaf?
A stem and leaf diagram is a frequency diagram.

Lets take an example... 

Example 1:
Below is a stem and leaf diagram showing the number of primary student on 15 bus journey to school

Example 2: 

Here are the scorer by 10 students in maths test.

63 85 75 69 73 65 81 74 69 69 

1, Put tens in the left as stem 

2. it is easier to put the units in an unordered list

3.  rewrite the digits in order 

Example 3:

Construct the stem and leaf diagram according to the numbers given below

54, 53, 56, 45, 43, 47, 22, 32, 

2 | 2

3 | 2

4 | 3   5   7   

5 | 3   4   6

Exercise to try!

Construct a stem and leaf diagram for the following numbers:-

(a) 12, 13, 17, 23, 18, 45,33

(b) 11, 13, 16, 18, 15, 15, 22, 23, 24