10-7: Interpret Graphical Displays

Open Ended

What do you notice about the dot plot? Symmetrical? Not Symmetrical? outliers?

Multiple Choice

The results of a class survey about the number of hours they spent on the internet each week by students are shown in the dot plot. What is the best measure of center?

• Mean because there are no outliers and the data is symmetric

• Median because there are outliers and the data is symmetric

• Mode

• IQR

Multiple Choice

What would be the appropriate measure of variability to describe the data?

• IQR

• Range

• Mean Absolute Deviation (MAD)

• Median

Multiple Choice

Is the distribution symmetric?

• Yes

• No

Multiple Choice

Does the distribution contain outliers?

• yes

• no

Multiple Choice

Does the distribution have peaks? if so where?

• None

• 0-2

• 9-11

• 12-14

Multiple Choice

True or false: you can always find the mean using a box plot.

• true

• false

Multiple Choice

Is the distribution symmetric?

• Yes

• No

Multiple Choice

Does the distribution contain outliers?

• Yes

• No

Multiple Choice

What is the median?

• 23

• 27

• 33

• 39

Multiple Choice

What is the IQR? (remember IQR=Q3-Q1)

• 8

• 20

• 2

• 6