Math 1 Unit 9 Quiz

For a data set the mean is 46.5 and the median is 45. There is an outlier at 68. If we took out the 68, the median would still be 45. What would happen to the mean?

• It would stay the same.

• It would increase.

• It would decrease.

• There is no way to know.

For a data set the mean is 46.5 and the median is 45. There is an outlier at 68. If we took out the 68, what would you expect to happen to the standard deviation?

• It would stay the same

• It would increase

• It would decrease

• There is no way to know

Which statement best describes the graph?

• the data has a normal distribution (symmetric)

• the data is skewed left

• the data is skewed right

• the data is bimodal

Which statement best describes the graph

• the data is bimodal

• the range of the data is 5

• the mean and the median are not very helpful for this data set

• all of the above

• a

• b

• c

• d

Thinking about the center of each data set, which class scored higher on the test?

• Smith's

• Adam's

• They were about the same

• You can't tell from the graphs

The graph represents

• unimodal data

• bimodal data

• multimodal data

• uniform data

The graph represents (roughly)

• left skewed data

• right skewed data

• uniform data

• none of the above

The graph represents

• unimodal data

• bimodal data

• multimodal data

• uniform data

What is the approximate difference in the interquartile ranges?

• 20
• 12
• 32
• 40

Tags

CCSS.2.MD.A.1