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The owner of a coffee shop has found that the amount spent by customers at the shop is normally distributed with a mean of $6.80

The owner of a coffee shop has found that the amount spent by customers at the shop is normally distributed with a mean of $6.80 and a standard deviation of $1.20. If a random sample of 25 customers is selected, what is the probability that the average amount spent by this sample of customers will be less than $7.40? Round your answer to four decimal places.

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