Guessing answers on standard tests are typically multiple- choice questions with five choices of answers: A, B, C, D, and E. Find P(WWC). Note: W wrong answer and C a) %3D correct answer. Beginning with WwWC, make the complete list of the different b) possible arrangements of two wrong answers and one correct answer. Find the probability of for each entry in the list. on the preceding c) Based results, what is the probability of getting exactly one answer correct when three guesses are made?

Algebra and Trigonometry (MindTap Course List)
4th Edition
ISBN:9781305071742
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter14: Counting And Probability
Section14.4: Expected Value
Problem 21E
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Guessing answers on
standard tests are typically multiple-
choice questions with five choices of
answers: A, B, C, D, and E.
a)
Find P(WWC). Note: W
wrong answer and C =
correct answer.
Beginning with wWC, make
the complete list of the
different
b)
possible
arrangements of two wrong
answers and one correct
answer. Find the probability
of for each entry in the list.
Based on the preceding
results,
probability of getting exactly
what
is
the
one answer correct when
three guesses are made?
Transcribed Image Text:Guessing answers on standard tests are typically multiple- choice questions with five choices of answers: A, B, C, D, and E. a) Find P(WWC). Note: W wrong answer and C = correct answer. Beginning with wWC, make the complete list of the different b) possible arrangements of two wrong answers and one correct answer. Find the probability of for each entry in the list. Based on the preceding results, probability of getting exactly what is the one answer correct when three guesses are made?
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