Question

A section of an exam contains four true/false questions. A completed exam is selected at random and the four answers are observed. Assume all outcomes are equally likely. (a) Describe the sample space. (b) Find the probability that all the answers are "true". (c) Find the probability that all the answers are the same. (d) What is more likely: that the first answer is "false" or that the last answer is "false"? Briefly explain why.

Name: a section of an exam contains four truefalse questions a completed exam is selected at random and the four answers are observed assume all outcomes are equally likely a describe the sample s 78248
Uploaded: 2022-06-16T20:15:15-08:00
Duration: 4 min 2 s
Channel: Cheng Zhang
Description: a section of an exam contains four truefalse questions a completed exam is selected at random and the four answers are observed assume all outcomes are equally likely a describe the sample s 78248

          A section of an exam contains four true/false questions. A completed exam is selected at random and the four answers are observed. Assume all outcomes are equally likely.
(a) Describe the sample space.
(b) Find the probability that all the answers are "true".
(c) Find the probability that all the answers are the same.
(d) What is more likely: that the first answer is "false" or that the last answer is "false"? Briefly explain why.

Added by Jamie V.

Elementary Statistics a Step by Step Approach

Allan G. Bluman 9th Edition

Instant Answer

Solved by Expert Cheng Zhang

06/16/2022

Step 1

The sample space consists of all possible outcomes when answering four true/false questions. Each question can be answered in two ways: true or false. Therefore, the sample space consists of all possible combinations of true and false for four questions, which Show more…

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A section of an exam contains four true/false questions. A completed exam is selected at random and the four answers are observed. Assume all outcomes are equally likely. (a) Describe the sample space. (b) Find the probability that all the answers are "true". (c) Find the probability that all the answers are the same. (d) What is more likely: that the first answer is "false" or that the last answer is "false"? Briefly explain why.