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Mathematics, 14.04.2020 16:37, tcarston9884
The average age of the residents in a city is 40 and the standard deviation is 17 years. The distribution of ages is known to be normal. Suppose a group of 15 people is formed to represent all age groups. The average age of this group is 50. What is the chance that the average age of a randomly selected group of 15 people from this population is at least 50 years old (round off to third decimal place)
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The average age of the residents in a city is 40 and the standard deviation is 17 years. The distrib...
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