Comparing Data and Variability

Which statement is supported by the information in the box plots pictured?

• Player A has a larger spread in the points he scored than Player B.

• Player A has a larger center than Player B.

• Player A scored points in all 25 games, but Player B did not.

• Player A and Player B each scored 36 points in at least one of the 25 games.

compare the box plots of the results from the final exam that Mrs. Leeward gave her class. Which statement is true based on the box plots?

• Class 2 has a larger spread in their final exam scores than Class 1 has in their final exam scores.

• Class 2 has a center score of 85 and Class 1 has a center score of 80.

• Class 1 has a minimum score of 50 and Class 2 has a maximum score of 100.

• Class 2 has a larger interquartile range than Class 1.

What is the of this box plot?

• 20

• 17

• 15

• 14

• 12

A random sample of 21 students at Daulton Elementary and at Spenser Elementary is asked how many sibling they have. The results are pictured. When comparing the two populations, which statement is NOT supported by the data?

• The students at Spenser Elementary tend to have more siblings than the students at Daulton Elementary.

• The range in the data for Daulton Elementary is the same as the range in the data for Spenser Elementary.

• The median number of siblings for Daulton Elementary is larger than the median number of siblings for Spenser Elementary.

• The students at both elementary schools tend to have 2 or more siblings.

Noah conducted a survey on sports participation. He created the following two dot plots to represent the number of students participating, by age, in soccer and basketball.

Which statement about the given data sets is correct?

• The data for soccer players are skewed right. 

• The data for soccer players have less spread than the data for basketball players.

• The data for basketball players have the same median as the data for soccer players.

• The data for basketball players have a greater mean than the data for soccer players.

Answer the question pictured.

• 1

• 2

• 3

• 4

What is the median/ Q2 of this box plot?

• 20

• 17

• 15

• 14

• 12

What is the Q3 of this box plot?

• 20

• 17

• 15

• 14

• 12

What is the interquartile range (IQR) of this box plot?

• 8

• 3

• 20

• 5

• 14

What is the spread of this box plot?

• 8

• 3

• 20

• 5

• 14