justinzbuchanan justinzbuchanan

17-01-2021
Mathematics

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At a coffee shop 55% of customers buy a coffee drink, 30% buy food, and 25% buy both coffee and food. What is the probability that a randomly chosen customer by either a coffee drink or food?

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clarch19 clarch19

17-01-2021

Answer:

85%

Step-by-step explanation:

with OR (as opposed to AND), you add probabilitites

with AND, you multiply them

P(coffee OR food) = .55 + .30 = .85

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