1. Box and Whisker Plots

2. Vocabulary
Box-and-whisker – a graph that summarizes a set of data by displaying it along a number line. It consists of three parts: a box and two whiskers
The left whisker extends from the minimum to the first quartile. It represents 25% of the data
The box extends from the first quartile to the third quartile and has a vertical line through the median. The length of the box represents the interquartile range. It contains about 50% of the data.
The right whisker extends from the third quartile to the maximum. It represents about 25% of the data.

3. WHAT IT LOOKS LIKE

4. Steps Step 1: Arrange the data in order from least to greatest
Step 2: Find the minimum, maximum, and median
The minimum is 61. The maximum is 157. The median is 104.
(If for example if it was 1, 2, 3, 4, 5, 6, 7, 8 then to find the median you
would have to add the 4 and 5 and then divide by 2)
Example: 4+5 2

5. Step 3: Find the first quartile and the third quartile
First quartile: 2
Third quartile:

6. EXAMPLES
SOLVE AND GRAPH!
45, 17, 91, 78, 23, 64, 34

7. 2. 41, 32, 67, 105, 34, 76, 89, 17

8. 3. 78, 109, 43, 123, 67, 48, 89, 34, 90