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Data concerning life expectancy were collected from 199 countries. The mean life expectancy was 71 years with a standard deviation of 9 years. Compute the

Data concerning life expectancy were collected from 199 countries. The mean life expectancy was 71 years with a standard deviation of 9 years. Compute the z score for a country with a life expectancy of 80 years. Round your final answer to three decimal places.

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