Mathematics, 15.07.2020 01:01 bellavelasco
Multiple-choice questions each have four possible answers left parenthesis a comma b comma c comma d right parenthesis​, one of which is correct. Assume that you guess the answers to three such questions.
a. Use the multiplication rule to find ​P(CWC​), where C denotes a correct answer and W denotes a wrong answer.
b. Beginning with CWC​, make a complete list of the different possible arrangements of two correct answers and one wrong answer​, then find the probability for each entry in the list.​P(CWC​)minussee above ​P(WCC​)equals? 0.046875 ​P(CCW​)equals? 0.046875 ​(Type exact​ answers.)
c. Based on the preceding​ results, what is the probability of getting exactly two correct answers when three guesses are​made?
Answers: 3
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