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Furnace repair bills are normally distributed with a mean of 269 dollars and a standard deviation of 30 dollars. If 144 of these repair bills

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Furnace repair bills are normally distributed with a mean of 269 dollars and a standard deviation of 30 dollars. If 144 of these repair bills are randomly selected, find the probability that they have a mean cost between 269 dollars and 271 dollars. .0.2119 O 0.5517 0.2881 0.7881

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