Measures of Variability and Box Plots

Measures of Variability, Box Plots, and Analyzing Data

• I can calculate measures of variability (range and interquartile range).

• ​I can create box plots.

• I can compare data from two populations to draw conclusions.

Multiple Choice

I can calculate measures of variability (range).

1, 2, 2, 4, 8, 8, 9, 10, 14, 15

What is the range?

• 15

• 8

• 12

• 14

Multiple Choice

When asked how many hours they spend on a computer each day, students gave the following answers (in hours):

2, 5, 4, 1, 11, 5, 4, 5, 2

What is the range of the data set?

• 9

• 0

• 10

• 7

Multiple Choice

I can calculate measures of variability (range and interquartile range).

1, 2, 2, 4, 8, 8, 9, 10, 14, 15

What is the Interquartile Range (IQR)?

• 8

• 14

• 10

• 11

Multiple Choice

When asked how many hours they spend on a computer each day, students gave the following answers (in hours):

2, 5, 4, 1, 11, 5, 4, 5, 2

What is the Interquartile Range (IQR)?

• 2

• 3

• 4

• 5

Multiple Choice

The Box Plot shown represents the data below?

4, 4, 6, 8, 10, 12, 12, 12, 12, 13, 13, 15, 18, 19, 19

• True

• False

Multiple Choice

The Box Plot shown represents the data below?

6, 7, 8, 9, 10, 12, 12, 13, 13, 14, 14, 15, 15

• True

• False

Multiple Select

I can compare data from two populations to draw conclusions.

Select all of the following TRUE statements.

• The maximum of Data Set T is greater than the maximum of Data Set U.

• The maximum of Data Set T is less than the maximum of Data Set U.

• The minimum of Data Set T is more than the minimum of Data Set U.

• The minimum of Data Set T is less than the minimum of Data Set U.

Multiple Select

I can compare data from two populations to draw conclusions.

Select all of the following TRUE statements.

• The range of Data Set K is greater than the range of data set L.

• The range of Data Set K is less than the range of data set L.

• The mean of Data Set K is less than the mean of Data Set L.

• The mean of Data Set K is greater than the mean of Data Set L.

Multiple Select

I can compare data from two populations to draw conclusions.

Select all of the following TRUE statements.

• The mean of Data Set T is less than the mean of Data Set U.

• The mean of Data Set T is greater than the mean of Data Set U.

• The range of Data Set T is less than the range of Data Set U.

• The mean of Data Set T is less than the mean of Data Set U.