2.75 TV Commercials The mean duration of television commercials on a given network is 75 seconds, with a standard deviation of 20 seconds. Assume that durations are approximately normally distributed....

2.75 TV Commercials The mean duration of<br>television commercials on a given network is 75<br>seconds, with a standard deviation of 20 seconds.<br>Assume that durations are approximately normally<br>distributed.<br>a. What is the approximate probability that a<br>commercial will last less than 35 seconds?<br>b. What is the approximate probability that a<br>commercial will last longer than 55 seconds?<br>

Extracted text: 2.75 TV Commercials The mean duration of television commercials on a given network is 75 seconds, with a standard deviation of 20 seconds. Assume that durations are approximately normally distributed. a. What is the approximate probability that a commercial will last less than 35 seconds? b. What is the approximate probability that a commercial will last longer than 55 seconds?

Jun 11, 2022

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2.75 TV Commercials The mean duration of television commercials on a given network is 75 seconds, with a standard deviation of 20 seconds. Assume that durations are approximately normally distributed....

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