Mathematics, 11.07.2019 20:20 sydthekid9044

In a certain country, the average age is 31 years old and the standard deviation is 4 years. if we select a simple random sample of 100 people from this country, what is the probability that the average age of our sample is at least 32?

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In a certain country, the average age is 31 years old and the standard deviation is 4 years. if we s...