MATH 1113:

Section 4.2 Homework

Answer each question to the best of your ability. Show your calculations (they can be verified on a calculator). Your final answer should be in the form of a complete sentence.

For each of the descriptions below, answer the following questions:

a. How many modes would you expect for the distribution? (1 point)

b. Would you expect the distribution to be symmetric, left-skewed, or right-skewed? Why?

(2 point)

1. The annual incomes of all those in this statistics class, including the instructor.

2. The heights of 250 randomly selected female statistics students.

3. The heights of 500 female students, half of whom are college students while the other half are second-grade students.

4. The ages of adults at the time of their death.