(a) the first question she gets right is the 3rd question? (please round to four decimal places) (b) she gets exactly 3 or exactly 4 questions right? (please round to four decimal places) (C) she gets the majority of the questions right? (please round to four decimal places)

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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3.36 Multiple choice quiz: In a multiple choice quiz there are 5 questions and 4 choices for each question
(a, b, c, d). Robin has not studied for the quiz at all, and decides to randomly guess the answers. Find the
probabilities of each of the following events:
(a) the first question she gets right is the 3rd question?
(please round to four decimal places)
(b) she gets exactly 3 or exactly 4 questions right?
(please round to four decimal places)
(C) she gets the majority of the questions right?
(please round to four decimal places)
Transcribed Image Text:3.36 Multiple choice quiz: In a multiple choice quiz there are 5 questions and 4 choices for each question (a, b, c, d). Robin has not studied for the quiz at all, and decides to randomly guess the answers. Find the probabilities of each of the following events: (a) the first question she gets right is the 3rd question? (please round to four decimal places) (b) she gets exactly 3 or exactly 4 questions right? (please round to four decimal places) (C) she gets the majority of the questions right? (please round to four decimal places)
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