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1. Which of the following are examples of discrete random variables?
The number of people who vote for the Democratic candidate for governor in the next state election
The Number of students who receive an A on their statistics exams
2. A continuous random variable is a random variable whose possible values can be any number in one or
more intervals on the real number line.
3. The symbol p(7) corresponding to a discrete random variable x represents
The Probability that x takes the value of 7
4. The probabilities in a discrete probability distribution must sum to 1
5. Suppose we could record the values a random variable x takes when we observe it over and over again.
The mean of this population of all possible values is called:
The expected value of x
6. Hotels R US has kept the following records concerning the number of guests in a room.
Number of Guests
Probability
1
.35
2
.50
3
.10
