Chapter 4.2, Problem 36BSC

Using Probability to Identify Unlikely Events. In Exercises 29–36, 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.)

30. At the End of the Day In a Marist pull, 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 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?