Box and Whisker Plots

Reading & Creating Box & Whisker Plots

Quartiles

• Box plots consist of 4 parts

• Each part represents 25% of the data

• How much of the data is between 14 - 21?

Interquartile Range (IQR)

Multiple Choice

What do points A and E represent on the box plot?

• Mean and Mode

• Mean and Median

• Least and Greatest Value

• First and Third Quartiles

Multiple Choice

What do points B and D represent on the box plot?

• Mean and Mode

• Mean and Median

• Least and Greatest Value

• First and Third Quartiles

Multiple Choice

What does point C on the box plot represent?

• First Quartile

• Median

• Third Quartile

• Mean

Multiple Choice

What is the median of the data?

• 200

• 100

• 90

• 140

Multiple Choice

What value is the lower quartile?

• 66

• 58

• 60

• 64

Multiple Choice

What data value is the upper quartile (Q3)?

• 64

• 62

• 66

• 58

Multiple Choice

What is the minimum value?

• 64

• 58

• 66

• 60

Multiple Choice

What is the maximum value?

• 64

• 58

• 66

• 60

Multiple Choice

What are your numbers ordered from least to greatest? (12, 8, 22, 34, 15, 18, 4, 11, 17, 34)

• 4, 8, 11, 12, 15, 17, 18, 22, 34, 34

• 34, 34, 22, 18, 17, 15, 12, 11, 8, 4

• 8, 11, 12, 15, 17, 18, 22, 34

• 4, 8, 11, 15, 16, 18, 22, 24

Multiple Select

What is the minimum and maximum?

• 4

• 12

• 34

• 8

• 11

Multiple Choice

Now lets find the median, what do you do to find it?

• Cross off my numbers in pairs until I get one or two in the middle

• Add all of my numbers together

• Find the most common one

• Subtract the largest and smallest

Multiple Choice

We have two numbers in the center, what do we do to find the median?

• Nothing, we have two medians

• Add them and divide by 2

• We choose the one we like the most

Multiple Choice

What is the interquartile range? (Q3 - Q1)

• 33

• 11

• 26

• 23

Multiple Choice

• A. Mean

• B. Median

• C. Mode

• D. Range

Multiple Choice

• A. Mean and Mode

• B. Mean and Median

• C. Least and Greatest Value

• D. Lower and Upper Quartile

Multiple Choice

• A. Mean and Mode

• B. Mean and Median

• C. Least and Greatest Value

• D. Lower and Upper Quartile

Multiple Choice

• A.

• B.

• C.

• D.

Multiple Choice

• A. 6 & 8

• B. 6 & 19

• C. 8 & 15

• D. 15 & 19

Multiple Choice

• A. 6

• B. 12

• C. 13

• D. 19