AP Stats Review U1 Level 1

Which variable is categorical?

• Age

• Hair Color

• GPA

• Mile run time

Which variable is quantitative?

• Social Security number

• Eye color

• College major

• Cost of a movie ticket

Which variable is continuous?

• Weight

• Shoe size

• Number of children in class

• Number of cars owned

Which variable is discrete?

• Weight

• Height

• Number of teachers in a school

• Temperature

What is a benefit of choosing a dotplot rather than a histogram to display data?

• A histogram shows individual values and the shape of the distribution.

• A dotplot is better for large data sets.

• A dotplot is the only type of graph that shows the shape of the distribution.

• A dotplot shows individual values and the shape of the distribution.

Which graphs can you use for quantitative variables? Check all that apply.

• Bar Graph

• Histogram

• Dot plot

• Pie chart

• Stem and leaf plot

What shape does the distribution of foreign born residents in the states have?

• Skewed left

• Skewed right

• Bimodal

• Approximately symmetric

• Uniform

Is this a bar graph or a histogram?

• Bar graph

• Histogram

Below is a stemplot of the percent of residents aged 25 to 34 in each of the states.

What could be a key for this graph?

• 11 | 4 = 114%

• 1 | 44 = 1.44%

• 11 | 4 = 11.4%

• 1 | 44 = 14.4%

• 11 | 44 = 11.44%

For the following distribution, what would be higher: the mean or median?

• The mean

• The median