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(CWC), where C denotes a correct answer and W denotes a wrong answer. P(CWC)=____ (Type an exact 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)=_____ P(WCC)=_____ P(CCW)=_____ ( Type exact answers.) c. Based on the preceding results, what is the probability of getting exactly two correct answers when three guesses are made? ____ (Type an exact answer.)
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(CWC), where C denotes a correct answer and W denotes a wrong answer. P(CWC)=____ (Type an exact 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)=_____ P(WCC)=_____ P(CCW)=_____ ( Type exact answers.) c. Based on the preceding results, what is the probability of getting exactly two correct answers when three guesses are made? ____ (Type an exact answer.)
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter1: Expressions And Functions
Section1.2: Order Of Operations
Problem 38PPS
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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(CWC), where C denotes a correct answer and W denotes a wrong answer.
P(CWC)=____
(Type an exact 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)=_____
P(WCC)=_____
P(CCW)=_____
( Type exact answers.)
c. Based on the preceding results, what is the probability of getting exactly two correct answers when three guesses are made? ____
(Type an exact answer.)
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