Quantitative and Categorical Data

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.

How many more people live in Rivertop than in Bently?

• 3,000 people

• 8,000 people

• 5,000 people

• 9,000 people

How many students received a score of 94%?

• 94

• 4

• 1

• 2

Describe the shape.

• Uniform

• Roughly symmetric

• Skewed to the left

• Skewed to right

Identify the type of statistical display

• Histogram

• Bar Graph

• Line Graph

• Pie Chart

Identify this type of statistical display.

• Histogram

• Bar graph

• Line graph

• Pie chart

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

Which is the explanatory variable?

• Hours of Sleep

• Test Score

Which is the response variable?

• Distance from Center of City

• Rent

100 men and 40 women are surveyed about their preferences. Approximately how many men preferred sports?

• 60

• 10

• 20

• 50