Chapter 17

Question 1

1. There are two possible outcomes.
2. The probability of success is constant.
3. The trials are independent.

Answer 1

Bernoulli trials, if…

Question 2

Model appropriate for a random variable that counts the number of Bernoulli trials until the first success.

Answer 2

Geometric probability model

Question 3

Model appropriate for a random variable that counts the number of successes in a fixed number of Bernoulli trials.

Answer 3

Binomial probability model

Question 4

Sample is smaller than 10% of the population.

Answer 4

10% condition

Question 5

For a Normal model to be a good approximation of a Binomial model.
Np>10 and never>10.

Answer 5

Success/failure condition

Question 6

When we can no longer list all the possible outcomes and their probabilities.

Answer 6

Continuous random variable