Mathematics, 16.11.2019 00:31 darantjohnson

In a busy coffee shop, which is a member of an international chain of coffee shops, 40% of customers order a pastry in addition to their drink. if 20 customers were selected at random during one business day, what is the probability that at least 11 of them did not order a pastry with their drink. round your answer to 4 decimal places.

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In a busy coffee shop, which is a member of an international chain of coffee shops, 40% of customers...