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The age of a randomly selected alcohol-impaired driver in a fatal car crash is a random variable with 24 probability density function given by f

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The age of a randomly selected alcohol-impaired driver in a fatal car crash is a random variable with 24 probability density function given by f (x) = for x in [15,40]. Find the probability that the age of a randomly selected driver is less than 21? Round your answer to 4 decimals

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