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Andrew's daily expenditure follows a normal distribution with mean 70 and standard deviation 5. His mother checks Andrew's expenditures on 25 randomly selected days. What

Andrew's daily expenditure follows a normal distribution with mean 70 and standard deviation 5. His mother checks Andrew's expenditures on 25 randomly selected days. What is the standard error of the average expenditure on these 49 days? 14 2.8 70 1

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