The random variable X is exponentially distributed, where X represents the time it takes for a person to choose a birthday gift.
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Get it written →The random variable X is exponentially distributed, where X represents the time it takes for a person to choose a birthday gift. If X has an average value of 27 minutes, what is the probability that X is less than 31 minutes? (Do not round until the final step. Round your answer to 3 decimal places.)
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