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6. At Pierre’s Coffee Shop, 65% of customers order coffee, 20% order tea, and 11% order...

6. At Pierre’s Coffee Shop, 65% of customers order coffee, 20% order tea, and 11% order fruit juice, while 4% do not order anything to drink. In addition, 39% order a muffin, 26% order a bagel, and 23% order a Danish, while 12% do not order anything to eat. Finally, 8% of customers order both tea and a Danish, and 47% of people order fruit juice given that they have ordered a muffin. Assume that an individual customer will not order more than one drink or more than one breakfast roll. Also assume that the customers are independent of each other.  

a) What is the probability that four straight customers will not order something to eat?

Probability rule(s) or concept(s) involved (choose all that apply):

6. a) What is the probability that four straight customers will not order something to eat?

Probability:

math   Statistics-And-Probability   
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Answer #1

Probability that four straight customers will not order something to eat = Probability that a randomly selected customer does not order anything to eat ^{4}

= = 0.00021

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