Comparing Center and Spread of Two Sets of Data

Jessie is comparing the prices of meals at two different restaurants. She makes a dot plot for each of the restaurants showing the cost for each meal on the dinner menu. Which restaurant's data set would have a smaller standard deviation?

• Restaurant A

• Restaurant B

Both batters have the same average distance. Which one has a greater standard deviation?

• Batter A

• Batter B

The box-and-whisker plot shown represents some data set.

What percentage of the data values are greater than or equal to 110?

• 25%

• 50%

• 75%

• 100%

Which data set has the higher median value?

• Data Set A

• Data Set B

Which data set has the smaller IQR?

• Data Set A

• Data Set B

What is the difference between the maximum values of each data set?

(a)  

What is the IQR of the Cruisers?

• 4

• 6

• 9

• 11

The box-and-whisker plot shown represents some data set.

What percentage of the data values are greater than or equal to 80?

• 25%

• 50%

• 75%

• 100%

Which data set has the smallest data value?

• Data Set A

• Data Set B

What does standard deviation represent?

• How many different variations are in the data set.

• How the population varies compared to the sample.

• How spread out each data value is from the mean.

• The range of the data set.