20. On an 8-question true or false test, you randomly guess at the answers. What is the probability that you get all 8 answers correct? What is the probability that you get all 8 answers wrong? OA. 1/256; 255/256 OB. 1/256; 1/256 OC. 1/2; 1/2 OD. 1/8, 7/8 21. If A and B are two events associated with the same sample space of a random experiment then P(A/B) is given by OA. P(AMB)/P(B), provided P(B) = 0 OB. P(AMB)/P(B), provided P(B) = 0 OC. P(ANB)/P(B) OD. P(AMB)/P(A) 22. Given that A and B are events such that P(A) = 0.6, P(B) = 0.3 and P(A B) = 0.2, then P(A/B) =? A. 2/3
20. On an 8-question true or false test, you randomly guess at the answers. What is the probability that you get all 8 answers correct? What is the probability that you get all 8 answers wrong? OA. 1/256; 255/256 OB. 1/256; 1/256 OC. 1/2; 1/2 OD. 1/8, 7/8 21. If A and B are two events associated with the same sample space of a random experiment then P(A/B) is given by OA. P(AMB)/P(B), provided P(B) = 0 OB. P(AMB)/P(B), provided P(B) = 0 OC. P(ANB)/P(B) OD. P(AMB)/P(A) 22. Given that A and B are events such that P(A) = 0.6, P(B) = 0.3 and P(A B) = 0.2, then P(A/B) =? A. 2/3
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
Problem 4ECP: Show that the probability of drawing a club at random from a standard deck of 52 playing cards is...
Related questions
Question
![20. On an 8-question true or false test, you randomly guess at the
answers. What is the probability that you get all 8 answers correct? What
is the probability that you get all 8 answers wrong?
O A. 1/256; 255/256
OB. 1/256; 1/256
O C. 1/2; 1/2
OD. 1/8; 7/8
21. If A and B are two events associated with the same sample space of a
random experiment then P(A/B) is given by
O A. P(AMB)/P(B), provided P(B) = 0
OB. P(ANB)/P(B), provided P(B) = 0
OC. P(AMB)/P(B)
OD. P(ANB)/P(A)
O
22. Given that A and B are events such that P(A) = 0.6, P(B) = 0.3 and P(A
B) = 0.2, then P(A/B) =?
O A. 2/3
OB. 1/3
O C. 3/4
OD. 1/4
*](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fb6cd9fa6-876e-43fe-8db6-8cc1a6a01a95%2F17892b7f-f44e-4594-b40a-65423c351c75%2Ft4j2ws9_processed.jpeg&w=3840&q=75)
Transcribed Image Text:20. On an 8-question true or false test, you randomly guess at the
answers. What is the probability that you get all 8 answers correct? What
is the probability that you get all 8 answers wrong?
O A. 1/256; 255/256
OB. 1/256; 1/256
O C. 1/2; 1/2
OD. 1/8; 7/8
21. If A and B are two events associated with the same sample space of a
random experiment then P(A/B) is given by
O A. P(AMB)/P(B), provided P(B) = 0
OB. P(ANB)/P(B), provided P(B) = 0
OC. P(AMB)/P(B)
OD. P(ANB)/P(A)
O
22. Given that A and B are events such that P(A) = 0.6, P(B) = 0.3 and P(A
B) = 0.2, then P(A/B) =?
O A. 2/3
OB. 1/3
O C. 3/4
OD. 1/4
*
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