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In a population with a normal distribution the average expenditure is $600. The Standard Deviation is $50. What expenditure must one make in order to

In a population with a normal distribution the average expenditure is $600. The Standard Deviation is $50. What expenditure must one make in order to be in the top 20% of expenditures? (Round to nearest whole dollar) O a. $ 642 O b. $ 682 O c. $ 920 O d. $ 925

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