Statistics Semester 1 Test

Which of the following are quantitative variables? Check ALL that apply.

• Gender

• GPA

• Height

• Ethnicity

What type of display is this?

• histogram

• scatterplot

• bar chart

• Normal model

According to the table, what percentage of pets are male cats?

• 10%

• 19.2%

• 20.4%

• 52%

According to the contingency table, what percentage of dogs are male?

• 42%

• 52%

• 80.8%

• 82.4%

According to the stem-and-leaf plot and posted grade scale, how many students got a C?

• 4

• 5

• 8

• 9

In a 5-number summary, Q3 is the same thing as _______.

• the median

• the maximum

• the 75th percentile

• the 25th percentile

According to the box-and-whisker plot, the maximum weight in the data set is about __________.

• 84

• 98

• 105

• 110

This histogram is . . .

(select all that apply)

• skewed left.

• skewed right.

• unimodal.

• uniform.

Compare the mean and the median of the pictured distribution.

• The mean is greater than the median.

• The median is greater than the mean

• The mean and the median are about the same.

• Not enough information to answer.

Which of the statistics listed below is a measure of the spread of data? (Select all that apply.)

• median

• IQR

• range

• standard deviation