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2. The average life expectancy of healthy adults in Boulder, CO is u = 80 with a standard deviation of o = 10. a) What

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2. The average life expectancy of healthy adults in Boulder, CO is u = 80 with a standard deviation of o = 10. a) What proportion would be between 75 and 85 years old? b) What proportion would live to be 90 or higher? c) What would be the standard error of the mean (OM) for samples of N = 10? N = 60

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