Jasmine opened a bank account. she deposited $84.50 into her account every month for 20 months. she used $50.50 every month to pay for dance lessons. after 20 months, she used 1 over 4 of the total money left in her account to go to a music camp. what is the total amount of money jasmine spent to go to the music camp? $115.00 $135.00 $155.00 $170.00

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?