Let x be a random variable that represents the amount of a

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Let x be a random variable that represents the amount of a randomly selected monthly cell phone bill. We know that x has a normal distribution with a mean of µ = $63.50 and a standard deviation of ? = $2.68. What is the probability that the mean amount of eight cell phone bills taken at random is between $62.00 and $65.00

Reference no: EM13624975

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