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# Using Probability to Identify Unlikely | Ch 4.2 - 36BSC ISBN: 9780321836960 18

## Solution for problem 36BSC Chapter 4.2

Elementary Statistics | 12th Edition

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Problem 36BSC

Using Probability to Identify Unlikely Events. ?In Exercises?, ?consider an event to be “unlikely” if its probability is less than or equal to 0.05. (This is equivalent to the same criterion commonly used in inferential statistics, but the value of 0.05 is not absolutely rigid, and other values such as 0.01 are sometimes used instead.) At the End of the Day In a Marist poll, respondents chose the most annoying phrases used in conversation. Nineteen chose “at the end of the day,” 441 chose “whatever,” 235 chose “you know,” 103 chose “it is what it is,” 66 chose “anyway,” and 75 were unsure. Based on these results, what is the probability of selecting someone who considers “at the end of the day” to be the most annoying phrase? At the end of the day, is it unlikely to select someone with that choice?

Step-by-Step Solution:

Step-by-step Solution Step 1 of 2 Computing the total number of the respondents in the survey, get the sum of all of the respondents stated on the problem. It will be: 19+441+235+103+66+75= 939 Thus, the sample space is 939. We are only concern on the probability of selecting someone who chose ‘at the end of the day’ as the most annoying statement in a conversation. Let this event be denoted by A. There are 19 ways that A will occur. Using this information, the probability of A is: number if ways A occur P(A)= sample space 19 P(A)= 939= 0.0202

Step 2 of 2

##### ISBN: 9780321836960

This full solution covers the following key subjects: chose, end, day, used, unlikely. This expansive textbook survival guide covers 121 chapters, and 3629 solutions. Since the solution to 36BSC from 4.2 chapter was answered, more than 340 students have viewed the full step-by-step answer. The answer to “Using Probability to Identify Unlikely Events. ?In Exercises?, ?consider an event to be “unlikely” if its probability is less than or equal to 0.05. (This is equivalent to the same criterion commonly used in inferential statistics, but the value of 0.05 is not absolutely rigid, and other values such as 0.01 are sometimes used instead.) At the End of the Day In a Marist poll, respondents chose the most annoying phrases used in conversation. Nineteen chose “at the end of the day,” 441 chose “whatever,” 235 chose “you know,” 103 chose “it is what it is,” 66 chose “anyway,” and 75 were unsure. Based on these results, what is the probability of selecting someone who considers “at the end of the day” to be the most annoying phrase? At the end of the day, is it unlikely to select someone with that choice?” is broken down into a number of easy to follow steps, and 143 words. The full step-by-step solution to problem: 36BSC from chapter: 4.2 was answered by , our top Statistics solution expert on 03/15/17, 10:30PM. Elementary Statistics was written by and is associated to the ISBN: 9780321836960. This textbook survival guide was created for the textbook: Elementary Statistics, edition: 12.

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