question archive the lifespan of microwave ovens in the US follows approximately a normal distribution with mean of 9 years and standard deviation of 2
Subject:StatisticsPrice: Bought3
the lifespan of microwave ovens in the US follows approximately a normal distribution with mean of 9 years and standard deviation of 2.5 yearswhat is the probability that randomly selected microwave lasts for more than 15 years what is the probability lasts for less than 5 years lasts between 6 and 8 years what is the 95th perceintile for the lifespan of microwave ovens.