The number of viewers of american idol has a mean of 29, Ask an Expert

Statistics

The number of viewers of American Idol has a mean of 29 million with a standard deviation of 5 million. Assume this distribution follows a normal distribution.

What is the probability that next week's show will:

(a) Have between 30 and 34 million viewers? (Round z-score computation to 2 decimal places and your final answer to 4 decimal places.)

(b) Have at least 23 million viewers? (Round z-score computation to 2 decimal places and your final answer to 4 decimal places.)

(c) Exceed 40 million viewers? (Round z-score computation to 2 decimal places and your final answer to 4 decimal places.)

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Statistics and Probability, Statistics

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