1. The problem asks to find how many classes are represented in the histogram of employee salaries. 2. In a histogram, each class corresponds to an interval on the x-axis. 3. The given salary intervals are: 32, 37, 42, 47, 52, 57, and 62 (in thousands of dollars). 4. Each class is the range between two consecutive numbers, so the classes are: - 32 to 37 - 37 to 42 - 42 to 47 - 47 to 52 - 52 to 57 - 57 to 62 5. Count the number of these intervals: there are 6 classes in total. 6. Therefore, the histogram represents 6 classes of employee salaries.