Displaying Quantitative Data

Out of 40 students surveyed, what is the spread on the time to eat breakfast?

• 3

• 10

• 11

• 12

How good was the 2012 U.S. women’s soccer team? With players like Abby Wambach, Megan Rapinoe, and Carli Lloyd, the team put on an impressive showing en route to winning the gold medal at the 2012 Summer Olympics in London. The dotplot shows the difference in the number of goals scored in each game (U.S. women’s team – Opponent). What percent of its games did the 2012 U.S. women's team win?

• 21/25 = 0.84 or about 84% of the games

• 4/25 = 0.16 or about 16% of the games

• 25/21 = 1.19 or 1.19% of the games

• 25/4 = 6.25 or 6.25% of the games

The dotplot shows the results of rolling a pair of 6-sided dice and finding the sum of the up faces 100 times. Determine if the dotplot is roughly symmetric or skewed.

• Roughly symmetric

• Left-skewed

• Right-skewed

• None of the above

The dotplot shows the results of rolling a pair of 6-sided dice and finding the sum of the up faces 100 times. Describe the peak(s) of the graph.

• Clear peak at 7

• Clear peak at 2

• There are multiple peaks at 6 and 7

• There are no peaks

The dotplot shows the results of rolling a pair of 6-sided dice and finding the sum of the up faces 100 times. Describe the clusters or gaps of the graph

• There is a cluster from 6 to 8.

• There is a gap from 13 to 14

• There are no gaps or clusters to describe

• I don't know what a gap or cluster is.

The dotplot displays the last digit of 100 phone numbers chosen at random from a phone book. Describe the shape of the distribution. Determine if the dotplot is roughly symmetric or skewed.

• Roughly symmetric

• Left-skewed

• Right-skewed

• None of the above

The dotplot displays the last digit of 100 phone numbers chosen at random from a phone book. Describe the shape of the distribution. Describe the peak(s).

• There are peaks at 4 and 7.

• There is a peak at 7.

• There is a peak at 4.

• There are no peaks.

The following parallel dotplots show the total family income of randomly chosen individuals from Indiana (38 individuals) and New Jersey (44 individuals). Which of the following correctly compares the shape of the distribution?

• The Indiana distribution is roughly symmetric, while the New Jersey distribution is right-skewed.

• The distribution for Indiana has a similar center to the distribution for New Jersey, around $45,000.

• The variability for Indiana is less than the variability for New Jersey.

• $160,000 appears to be an outlier for the Indiana distribution and there isn't any obvious outliers for the New Jersey distribution.

A florist records the amount of money he spent on gasoline each week to deliver orders. The list shows the data for 16 weeks. He put the data in a stem-and-leaf plot. What number did he leave out of the stem-and-leaf plot?

• 32

• 44

• 65

• 84

Which interval has the greatest number of employees?

• 11-21

• 33-43

• 77-87

• 44-54