Multiple-choice questions each have five possible answers (a, b, c, d, e), one of which is correct. Assume that you guess the answers to three such questions. a. Use the multiplication rule to find...

Multiple-choice questions each have

five

possible answers

(a, b, c, d, e),

one of which is correct. Assume that you guess the answers to three such questions.

a. Use the multiplication rule to find

P(WCW),

where C denotes a correct answer and W denotes a wrong answer.

P(WCW)=?

(Type an exact answer.)

b. Beginning with

WCW,

make a complete list of the different possible arrangements of

one

correct

answer

and

two

wrong

answers,

then find the probability for each entry in the list.

P(WCW)−see

above

P(CWW)=?

P(WWC)=?

(Type exact answers.)

c. Based on the preceding results, what is the probability of getting exactly

one

correct

answer

when three guesses are made?

(Type an exact answer.)

Jun 03, 2022

Get Answer To This Question