automobile fleet rental company needs to buy up to 200 new cars with $5,123,000. The cars will be three types: Smart cars at $24,000, sedans at $27,000, and luxury cars at $32,000. The new owners of the company want to purchase at least as many smart cars as sedans and luxury cars combined. They feel they need to have a minimum of 25 of each possible to rent. If they can earn $40 a day for smart cars, $45 a day for sedans, and $50 a day for luxury cars, how many of each should they buy in order to maximize their daily revenue?

Twelve less than a number is at most 20

If you flip a coin 3 times, what is the probability of flipping heads 3 times? a. p(3 heads) = 3/8 b. p(3 heads) = 1/6 c. p(3 heads) = 1/8 d. p(3 heads) = 1/2

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?