Brads statement shows a previous balance of $2592.35, a payment of $75, and new transactions totaling $432. his apr 18.6%. what is his new balance? (a) 2988.37 (b) 3064.53 (c) 3140.93 (d) 3246.43

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?