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Posted on Jul 31, 2024

According to a recent Wall Street Journal article, 9 0 % of retailers in the US take Apple Pay ( Ben Cohen, When Did We

According to a recent Wall Street Journal article, $90 %$ of retailers in the US take Apple Pay $($ Ben Cohen, "When Did We All Start Using Apple Pay?" August $20, 2022) .$

Suppose a US resident leaves their credit card at home and makes purchases at $4$ retailers. What is the expected number of these retailers who will not take Apple Pay?

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