Each summer, track and field athletes from all over the world represent their country by competing in the Sekai Games. At
the end of last year's games, the official record keeper counted the number of gold medals won by each country in that
year's games. The histogram below summarizes the data. Use the histogram to answer each of the questions.
Frequency
(Number of countries)
10.
3 106
7 to 10
11 to 14
Number of gold medals
15 to 18
(a) What is the class width?
I
(b) How many countries won 10 or fewer gold medals?
(c) One class is the most frequent. How many countries are in
this class?
