2.2 Histograms

What is one advantage of using a histogram?

• It can display small data sets effectively.

• It does not require a vertical axis.

• It can readily display large data sets.

• It can only display qualitative data.

How is relative frequency calculated?

• Frequency divided by the total number of data values

• Total number of data values divided by frequency

• Frequency multiplied by the total number of data values

• Total number of data values minus frequency

What is the first step in constructing a histogram?

• Choose the number of bars or intervals

• Label the vertical axis

• Calculate the relative frequency

• Plot the data points

What is a frequency polygon?

• A type of pie chart

• A type of bar graph

• A scatter plot

• A line graph that makes continuous data visually easy to interpret

What is a time series graph used for?

• Calculating the mean or median of a data set

• Displaying the changing values of a variable over time

• Displaying the number of days that temperatures reach a certain range of values

• Comparing distributions of different data sets

Which age groups had 20 to 30 people who favor M&M s?

• Age 6-10

• Age 21-25

• Age 6-10 AND age 26-30

• All ages