Jack invested $7,100 in an account paying an interest rate of 3 5/8%compounded continuously. Henry invested $7,100 in an account paying an interest rate of 3 5/8% compounded monthly. After 19 years, how much more money would Jack have in his account than Henry, to the nearest dollar?

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?