Which of the following systems of inequalities would produce the region indicated on the graph below? A. y< - x+4;y >x+2; y 2 0; x 20
B. y< - x+4; y c. Y< -x+4; y 2x+ 2; v2 0;.x20
D. Y<-x+4; y 5.x+ 2; y 2 0; x 20

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?