# Question

Multiple choice questions:

3. For the probability distribution of a discrete random variable, the probability of any single value of x is always

a. in the range 0 to 1

b. 1.0

c. less than zero

4. For the probability distribution of a discrete random variable, the sum of the probabilities of all possible values of x is always

a. greater than 1

b. 1.0

c. less than 1.0

6. The parameters of the binomial probability distribution are

a. n, p, and q

b. n and p

c. n, p, and x

7. The mean and standard deviation of a binomial probability distribution with n 25 and p .20 are

a. 5 and 2

b. 8 and 4

c. 4 and 3

8. The binomial probability distribution is symmetric if

a. p < .5

b. p = .5

c. p > .5

9. The binomial probability distribution is skewed to the right if

a. p < .5

b. p = .5

c. p > .5

10. The binomial probability distribution is skewed to the left if

a. p < .5

b. p = .5

c. p > .5

12. The parameter/parameters of the Poisson probability distribution is/are

a. λ

b. λ and x

c. λ and e

3. For the probability distribution of a discrete random variable, the probability of any single value of x is always

a. in the range 0 to 1

b. 1.0

c. less than zero

4. For the probability distribution of a discrete random variable, the sum of the probabilities of all possible values of x is always

a. greater than 1

b. 1.0

c. less than 1.0

6. The parameters of the binomial probability distribution are

a. n, p, and q

b. n and p

c. n, p, and x

7. The mean and standard deviation of a binomial probability distribution with n 25 and p .20 are

a. 5 and 2

b. 8 and 4

c. 4 and 3

8. The binomial probability distribution is symmetric if

a. p < .5

b. p = .5

c. p > .5

9. The binomial probability distribution is skewed to the right if

a. p < .5

b. p = .5

c. p > .5

10. The binomial probability distribution is skewed to the left if

a. p < .5

b. p = .5

c. p > .5

12. The parameter/parameters of the Poisson probability distribution is/are

a. λ

b. λ and x

c. λ and e

## Answer to relevant Questions

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