The bottle of maria's favorite sports drink says it holds 20 fluid ounces maria suspects that the sports drink actually holds a different amount. maria takes a random sample of 25 bottles and measures the number of fluid ounces in each bottle. the mean fluid ounces of maria's sample of 25 sports drinks is 21.5 fluid ounces assume that the standard deviation of fluid ounces for the entire population of sports drinks is 2 fluid ounces

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?