Quiz 2 - Comparing Statistical Data

Compare the two box plots shown in the picture. Which of the following statements is NOT true?

• Class B has a greater median of siblings.

• Class A has a greater variability in the number of siblings.

• Both Class A and Class B have students who are only children.

• Over half of the students in Class A have two or more siblings.

Two friends measure the distance a racecar travels over 10 trials. Use the dot plot to answer the question.

Which of the conclusions best supports the dot plots?

• Both Jamal and Kendall's racecars had an equal spread in their data.

• On average Kendall's racecar traveled further.

• The median distance Jamal's racecar traveled was 6.5 ft.

Two friends measure the distance a racecar travels over 10 trials. Use the dot plot to answer the question.

Which of the following represents the MEAN ABSOLUTE DEVIATION of Jamal's data?

• 6.4

• 1.12

• 2.8

• 0.9

Mrs. Moore's and Mrs. Hernandez'z classes are competing for the best scores on their math test. Use the box plots to answer the question.

Which of the following statements does NOT represent the data?

• The scores in Mrs. Hernandez's class have less variability than the scores in Mrs. Moore's class.

• The median of Mrs. Moore's class is equal to the first quartile of Mrs. Hernandez's class.

• The interquartile range of both classes is equal.

Mrs. Moore's and Mrs. Hernandez'z classes are competing for the best scores on their math test. Use the box plots to answer the question.

Which of the following represents the difference in centers of Mrs. Moore's class and Mrs. Hernandez's class?

• 8

• 11

• 4

• 3

Which students has the greater INTERQUARTILE RANGE of test scores?

• Amy

• Ed

What is the difference between the medians for the two data sets?

• 0 tickets

• 2 tickets

• 4 tickets

• 6 tickets

Are these dot plots symmetric?

• Yes

• No

Which box and whisker plot has the highest median?

• Top plot

• Bottom plot

Compare the center and spreads.

• Math has a higher median (center) and a wider spread.

• Math has a higher median (center) and a smaller spread.

• Math has a lower median (center) and a smaller spread.

• Math has a lower median (center) and a wider spread.