The Graph Shown Gives the First-Class Postage Rates in the Year

question 15

Multiple Choice

The graph shown gives the first-class postage rates in the year 1999 for mailing items weighing up to 5 ounces. According to the graph, which of the statements is incorrect? Weight (oz) and Postage Rate (cents)

• A) The postage cost for mailing a 2-ounce letter is 55 cents .
• B) The heaviest letter that could be mailed for 80 cents first class weighs 2 ounces.
• C) The postage cost for mailing a 1-ounce letter is 33 cents.
• D) The difference in postage for a 3.16-ounce letter and a 4.37-ounce letter is 20 cents .
• E) The postage cost for mailing a 4-ounce letter is $1.00.

---

Definitions:

Measure of Central Tendency

A statistical tool used to identify the center of a data set, commonly represented by the mean, median, or mode.

Mode

The most frequently occurring value in a set of data or distribution in statistics.

Variability

The extent to which data points in a statistical distribution or data set diverge from the average or mean, showing the spread or dispersion of the data.

Mode

The value that appears most frequently in a given set of data.