Problem
Question 5, 5.1.6 3 correct Part 3 of 6 Points: 0 of 1 Close Determine whether the following value is a continuous random variable, discrete random variable, or not a random variable. a. The number of pigeons in a country b. The usual mode of transportation of people in City $A$ c. The distance a football travels in the air after being thrown d. The time required to upload a file to the Internet e. The number of people with blood type B in a random sample of 40 people f. The number of hits to a website in a week A. It is a discrete random variable. B. It is a continuous random variable. C. It is not a random variable. b. Is the usual mode of transportation of people in City A a discrete random variable, continuous random variable, or not a random variable? A. It is a continuous random variable. B. It is a discrete random variable. C. It is not a random variable. c. Is the distance a football travels in the air after being thrown a discrete random variable, continuous random variable, or not a random variable? A. It is a continuous random variable. B. It is a discrete random variable. C. It is not a random variable.
Solution
Step 1 ：Determine whether the following value is a continuous random variable, discrete random variable, or not a random variable.
Step 2 ：The usual mode of transportation of people in City A is not a random variable because it does not vary randomly but is determined by the infrastructure and culture of the city.
Step 3 ：The distance a football travels in the air after being thrown is a continuous random variable because it can take on any value within a certain range, depending on factors such as the force of the throw, the angle of the throw, and the wind speed and direction.
