# 1. Which of the following are continuous random variables? (select all that apply)

a. The distance a person has walked in a day

b. How many glasses of water a person consumes in a day

c. The number of steps a person has walked in a day

d. The time it takes someone to tie their shoes

e. The speed of a car on a Phoenix freeway during rush hour traffic

2. Which of the following variable(s) would be considered a discrete random variable? (Select all that apply)

a. The number of students who bring their lunch to school instead of eating what the cafeteria serves.

b. The number races a race car driver competes in during a given year.

c. The average speed of a race car during a given race.

d. The time it takes a student to finish his/her lunch.

e. The cost of a statistics textbook

1. a, b, d, e ?

2. a, b, e ?