The graph below is the solution for which set of inequalities? 4
2
2
8-6-4-20
- 2
4
6
3x - y < 12
2x + y < 10
20
2 - 2y <4
2+y<5
> 0
y > 0
2.- y<8
2 + y < 5
2+y<5
3+y<4
>0
y > 0
2 > 0
y > 0
y> 0

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?