SOLUTION: Each question of a 5-question multiple choice exam has 3 possible answers. Suppose a student picks an answer at random for each question. Find the probability the student selects

Question 128589: Each question of a 5-question multiple choice exam has 3 possible answers. Suppose a student picks an answer at random for each question. Find the probability the student selects the correct answer on none of the questions.
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Each question of a 5-question multiple choice exam has 3 possible answers. Suppose a student picks an answer at random for each question. Find the probability the student selects the correct answer on none of the questions.
------------------
Prob he gets a particular question wrong is (2/3).
Prob he gets all 5 questions wrong is (2/3)^5 = 0.1317
----------------
Cheers,
Stan H.
RELATED QUESTIONS
Each question of a 5-question multiple choice exam has 3 possible answers. Suppose (answered by jorel555)

Each question of a 5-question multiple choice exam has possible answers. Suppose a... (answered by jorel555)

each question of a 5 question multiple choice exam gas 3 possible answers. suppose a... (answered by solver91311)

EACH QUESTION OF 5-QUESTION MULTIPLE CHOICE EXAM HAS 5 POSSIBLE ANSWERS. SUPPOSE A... (answered by Boreal)

Each question of a 5-question multiple choice exam has 4 possible answers. Suppose a... (answered by richard1234)

Each question of a five-question multiple choice exam has four possible answers. Whitney... (answered by stanbon)

each question of a 5-question multiple choice exam has 4 possible answers. suppose a... (answered by richwmiller)

There are twenty multiple choice questions in an exam. Each question has four possible... (answered by rothauserc)

Each question of a five-question multiple choice exam has four possible answers. Whitney... (answered by stanbon)