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Find an average level of schooling

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1. Suppose that the education level among adults in a certain country has a mean of 11.1 years, and a variance of 9. What is the probability that in a random survey of 100 adults you will find an average level of schooling between 10 and 12?

2. Does the central limit theorem (6-15) also hold true for the sample sum? Justify briefly.

Reference no: EM131870350

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