You are taking a multiple-choice test that has 33 questions. Each of the questions has 5 choices, with one correct choice per question. If you guess the answer for every question and leave nothing blank, what is the largest usual number of correct answers you would get? Round your answer to two 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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Question #1

You are taking a multiple-choice test that has 33 questions. Each of the questions has 5 choices, with one correct choice per question. If you guess the answer for every question and leave nothing blank, what is the largest usual number of correct answers you would get?

Round your answer to two decimal places.

 

Question #2

A local newspaper claims that 71.4% of the items advertised in its classifieds section are sold within 1 week of the first appearance of the ad. To check the validity of the claim, a random sample of 77 advertisements were selected from last year's classifieds and the people who placed the ads were contacted. Based on the newspaper's claim, what is the smallest usual number of items in this sample that should have sold within a week?

Show your answer in the decimal form, rounded to two decimal places.

 

Please answer all questions.

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