TEST 18 Row and columm Events
2
5
3
7
1
А A
6
8
B.
5
D
2
С
4
F.
E
6
10
3
G
7
4
9
H
2. What is B ?
1
What is A?
4. What is D?
3. What is C ?
5. What is B??
6. What is AXD ?
8. What is F?
7. What is E ?
2
9. What is H ?
10. What is G - 10 ?​

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?