Arts and crafts sales A local downtown arts and crafts shop found from past observation that 20%

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Arts and crafts sales A local downtown arts and crafts shop found from past observation that 20% of the people who enter the shop actually buy something. Three potential customers enter the shop.

a. How many outcomes are possible for whether the clerk makes a sale to each customer? Construct a tree diagram to show the possible outcomes.

1Let Y = sale, N = no sale.2

b. Find the probability of at least one sale to the three customers.

c. What did your calculations assume in part b? Describe a situation in which that assumption would be unrealistic.

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Statistics The Art And Science Of Learning From Data

ISBN: 9781292164878

4th Global Edition

Authors: Alan Agresti, Christine A. Franklin, Bernhard Klingenberg

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