1. How do we construct a box plot?
Math II
Today’s Question:
How do we construct a box plot?
Standard: MM1D3.a.

2. Range, Mean, Median, Mode
Step 1: Organize your data by listing it from the smallest to largest number! Find the mean, median, mode and range.
Temperatures: 18, 19, 17, 20, 24, 16, 31, 33, 36, 62
Quiz Scores: 100, 105, 73, 85, 42, 82, 78, 76, 84, 87, 79

3. Range, Mean, Median, Mode
The mean of the data set is its average. To find the mean you add up all the numbers and divide the answer by how many numbers you have.
Temperatures: 18, 19, 17, 20, 24, 16, 31, 33, 36, 62
= 276; 276 / 10
Mean = 27.6

4. Range, Mean, Median, Mode
The Median is the number which is in the exact middle of the data set.
Temperatures: 16, 17, 18, 19, 20, 24, 31, 33, 36, 62
Median = 22

5. Range, Mean, Median, Mode
The Mode is the number that appears the most often if you are working with only one variable.
Temperatures: 18, 19, 17, 20, 24, 16, 31, 33, 36, 62
Mode = no mode

6. Range, Mean, Median, Mode Range = 62 – 16 = 46
Find the range, mean, median, and mode for the following data set.
Temperatures: 16, 17, 18, 19, 20, 24, 31, 33, 36, 62
Range = 62 – 16 = 46

7. Box and Whisker Plot
The numbers below represent the temperatures in Kennesaw in January.
16,17,18,19,20,24,31,33,36,62 .
Q1 = 18
Q3 = 33
Interquartile Range: = 15
To check for outliers: 15*1.5 = 22.5 18
22 (median) 33

8. Class Work / Homework
Worksheet