This document provides instructions for creating and interpreting a box and whisker plot. It explains how to find the minimum, maximum, median, first quartile and third quartile values from a data set. These values are used to construct the box and whisker plot, with examples given for number of times washing hands per day and minutes spent showering. Students are then asked to choose a meaningful topic for a data set to analyze using a box and whisker plot.

1. Pre-requisite's for this lesson:
- use a calculator?
- distinguish the highest/lowest number?
- find the object/number in the middle?
- draw a dot?
- draw a line?

2. &
Box and Whisker Plot

3. Lower Median Upper Median
M
m ax
imu i
Min mu
m
3rd Quartile 1st Quartile
2nd Quartile

4. How many time do you wash your hands in a day?
Find the MINIMUM Value:
Lowest Number
Find the MAXIMUM Value:
Highest Number
Find the MEDIAN Value (Q ): 2
Middle Number
Find the 1st quartile (Q ): 1
Median of the values to the left of the median
Find the 3rd quartile (Q ): 3
Median of the values to the right of the median

5. how many minutes you spend in the shower?
Find the MINIMUM Value:
Lowest Number
Find the MAXIMUM Value:
Highest Number
Find the MEDIAN Value (Q ): 2
Middle Number
Find the 1st quartile (Q ): 1
Median of the values to the left of the median
Find the 3rd quartile (Q ): 3
Median of the values to the right of the median

6. data set: 1, 1, 2, 3, 4, 4, 4, 8, 9 1, 3, 3, 4, 5, 6, 8, 9, 10,10
Minimum
Score
Maximum
Score
Q1: Lower
Median
Q2:
Median
Q3: Upper
Median

8. Example of homework (do on a separate sheet of paper)
Number of hours on the Internet per day
Social Media OLS
Answers: 0, #, #, #, #, #, #, #, #, #, 10 Answers: 2, #, #, #, #, #, #, #, #, #, 7
Minimum: 0 Minimum: 2
Maximum: 10 Maximum: 7
Lower Median: 2 Lower Median: 4
Median: 3 Median: 5
Upper Median: 7.5 Upper Median: 6
OLS
Social Media
0 2 4 6 8 10

9. Topics: Please choose something useful, informative or
meaningful.
Meals Per Week (fruits vs. fast food)(boys vs. girls)
Liquid Intake per week (caffeine vs. water)
Shoe size of students (boys vs. girls)
Height of students (boys vs. girls)
Amount of texts per day (boys vs. girls) (weekday vs weekend)
Minute of exercise per day (boys vs. girls) (weekday vs weekend)
Hours of sleep (weekday vs. weekend) (boys vs. girls)
Pairs of shoes owned (boys vs. girls)
Amount of Footwear owned (shoes vs. slippers)
Do not choose:
How many strands of hair do you think is on a monkey's left
hand?