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Mathematics, 18.07.2019 07:30 eggg65

The manager of a sandwich shop wants to change the hours the shop closes. he needs to decide who to survey next week. which description would be an unbiased sample? a. every costumer who places an order greater than $20 throughout the week b. all customers who come into the shop before noon each day c. the last 10 customers at the end of each day, or d, every fifth customer throughout the week.

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