Mathematics, 20.02.2020 16:50, shadowsnake

A clothing store owner wants to know the proportion of customers who used coupons within the last 2 years. He randomly selects 450 receipts from a database of all purchases within the last 2 years and finds that 49 of them are discounted by coupons.

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A clothing store owner wants to know the proportion of customers who used coupons within the last 2...