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Based on data collected over several years, the time to complete servicing an electronic product ESP under warranty is assumed to be normally distributed with

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Based on data collected over several years, the time to complete servicing an electronic product ESP under warranty is assumed to be normally distributed with a mean of 25 minutes and 30 seconds, and a standard deviation of 4 minutes and 30 seconds. If two ESP products serviced by 2 tech-staff (TECH1 and TECH2) are randomly selected, find the probability that TECH1 serviced the product in at most 24 minutes and 30 seconds, and TECH2 took at least 4 minutes longer time than TECH1 to complete servicing the product

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