The probability that Hank Aaron hits a home run on any given at-bat is 0.14, and each at-bat is independent.

1. What is the probability that the next home run will be on his fifth at-bat?

2. What is the expected number of at-bats until the next home run?

Astandard deck of cards contains 52 cards. one card is selected from the deck. (a) compute the probability of randomly selecting a seven or king. (b) compute the probability of randomly selecting a seven or king or jack. (c) compute the probability of randomly selecting a queen or spade.

Sole with work in 10 years, the average number of hours of tv watched per week by teenagers dropped from 23.9 to 21.4. find the percent of change.

The surface area of the triangular prism is .