Five towns are situated close together. Town A is North East of town B and South East of town C. C is North of B and West of town D which is North East of A. Town E is South of D and East of B. Which direction is it from?
7 Town C to town E. ()
8 Town D to town B. ()
9 Town A to town E. ()
10 Town E to town C. ()

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?