Question: 21. Suppose an advertisement is selected at random from advertisements shown on the two weekday evenings during November 2003. What is the probability that the

 21. Suppose an advertisement is selected at random from advertisements shownon the two weekday evenings during November 2003. What is the probabilitythat the advertisement selected was not shown during a late-night segment, given

21. Suppose an advertisement is selected at random from advertisements shown on the two weekday evenings during November 2003. What is the probability that the advertisement selected was not shown during a late-night segment, given it was shown on ESPN? 0 37/132 0 37/513 0 45/399 0 45/917 Question 22 1 pts 22. Suppose an advertisement is selected at random from advertisements shown on the two weekday evenings during November 2003. What is the probability that the advertisement selected was shown on ABC during a late-night segment or on CBS during a prime-time segment? 0 69/917 0 90/917 0 159/917 0 337/917 Question 21 1 pts USE THE INFORMATION BELOW TO ANSWER PROBLEMS 21 THROUGH 24. With the recent growth in the number of US. households wired for cable television, major advertisers are now beginning to show an increased interest in cable advertising. Since its inception, cable television has offered advertisers relatively inexpensive rates and selective target audiences. For purposes of comparison, A.J. Bush and 1H. Leigh conducted a content analysis of television commercials on the three major networks, ABC, CBS, and NBC, and three of the more popular, well-established cable networks, CNN, ESPN, and TBS. One of the variables measured was the number of advertisements shown during prime-time (7:00 - 10:00 RM.) and late- night (10:00 PM. - 12:00 AM.) viewing segments on two weekday evenings during November 2003. The results are summarized in the table below. Number of advertisements Prime-time Late-ni_ t TOTALS MAJOR 163 NETWORKS 174 180 CABLE 113 NETWORKS 155 ESPN 87 45 132 TOTALS 518 399 917 Question 23 1 pts 23. Suppose an advertisement is selected at random from advertisements shown on the two weekday evenings during November 2003. What is the probability that the advertisement selected was shown on CNN? 0 95/917 0 155/513 0 95/518 0 155/917 Question 24 1 pts 24. Suppose an advertisement is selected at random from advertisements shown on the two weekday evenings during November 2003. What is the probability that the advertisement selected was shown on TBS during a prime-time segment, given that it was shown on a cable network? 0 66/ 517 0 66/917 0 113/517 0 66/ 400

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