Q14. The histogram below represents the number of television sets per household for a sample of U.S. households. How many households are included in the histogram?

Background

Topic: Frequency Distributions and Histograms

This question tests your ability to interpret a histogram and understand how to calculate the total sample size from frequency data.

Key Terms:

• Frequency: The number of occurrences of each value (in this case, the number of households with a certain number of TV sets).

• Histogram: A graphical representation of the distribution of numerical data.

Step-by-Step Guidance

1. Examine the histogram and identify the frequency for each category (number of TV sets).

2. List the frequencies for each bar: for 1 TV set, 2 TV sets, 3 TV sets, 4 TV sets, and 5 TV sets.

3. Add up the frequencies for all categories to find the total number of households represented in the histogram.

4. Set up the addition:

Try solving on your own before revealing the answer!