Sally plays 2 games against martin. in each game sally could win, draw, or lose in each game they play,
the probability that sally will win against Martin is 0.3
the probability that sally will draw against Martin is 0.1

Work out the probability that sally will win exactly one of the two games against martin

URGENT HELP!!

If 3x+8=3x+8 is it one solution or no solution

David is spreading mulch on a triangular area of his flower bed. the coordinates of the vertices of the area are (1, 3), (9, 3), and (4, 6). what is the area of the triangle if each square has an area of 3 square feet?

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?