Gino has a full container of gelato which has a density of 0.04 pounds per cubic inch. The container is a cylinder which has a radius of 3 inches and a height of 3 inches. Albert also has a
full container of gelato, which has a density of 0.05 pounds per cubic inch and is contained in a
cube which has side lengths of 6 inches. What is the difference in the number of pounds of
gelato between the two boys? Round any decimals to the nearest hundredth.

In a test for esp (extrasensory perception), a subject is told that cards only the experimenter can see contain either a star, a circle, a wave, or a square. as the experimenter looks at each of 20 cards in turn, the subject names the shape on the card. a subject who is just guessing has probability 0.25 of guessing correctly on each card. a. the count of correct guesses in 20 cards has a binomial distribution. what are n and p? b. what is the mean number of correct guesses in 20 cards for subjects who are just guessing? c. what is the probability of exactly 5 correct guesses in 20 cards if a subject is just guessing?