Exam 5: Discrete Probability Distributions

A jewelry supplier has a supply of earrings which are 10% platinum. A store owner orders five sets of earrings from the supplier. If the supplier selects the pairs of earrings at random, what is the chance that the jewelry store gets exactly two sets of platinum pairs?

Continuous random variables are obtained from data that can be measured rather than counted.

A(n) __________ variable is one in which values are determined by chance.

Discrete variables have values that can be measured.

Find the standard deviation for the values of n and p when the conditions for the binomial distribution are met. N = 1000, p = 0.7

The following distribution is not a probability distribution because

In binomial experiments, each trial can be viewed as having only two outcomes.

Using the probability distribution listed, the mean would be 1.6.

A computer store has 75 printers of which 25 are laser printers and 50 are ink jet printers. If a group of 10 printers is chosen at random from the store, find the mean and variance of the number of ink jet printers.