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The weights of ice cream cartons are normally distributed with a mean weight of 10 ounces and a standard deviation of 0.3 ounce. (a) What

The weights of ice cream cartons are normally distributed with a mean weight of 10 ounces and a standard deviation of 0.3 ounce.

(a) What is the probability that a randomly selected carton has a weight greater than 10.11 ounces?

(b) A sample of 25 cartons is randomly selected. What is the probability that their mean weight is greater than 10.11 ounces?

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