Question: In a certain geographical area, human birth weights have an average of 1 1 2 ounces with a standard deviation of 2 0 oz .

In a certain geographical area, human birth weights have an average of 112 ounces with a standard deviation of 20 oz. Within this area is a community with high rates of unemployment, poverty, and hunger. A sample of 40 newborns from this community has an average weight of 102 ounces. What is the probability that random sampling and chance alone produced a sample with an average this low in the geographical area?

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