There is a notice in a lift saying that the maximum weight allowed is 1200 kg.The weights of passengers are normally distributed with mean of 76 kg and a standard deviation of 9.5 kg 15 passenger get into the lift. (a) Calculate the mean and standard deviation of the total weights of 15 passengers.
Maximum weight allowed=1200 kg
(a) n=15,
Sample mean
Sample standard deviation
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