Asubmarine starts at sea level and travels to a position that is a little lower than −24 feet. use the drop-down menus to complete the statements about the submarine's position.

the submarine's position means the distance it traveled feet. ↑

a possible position of the submarine is feet.
↓
first space ↑ responses : equal to, greater than, or less than?

second space↓ : -27,-24,-18,0,18,24,27?

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?