SOLUTION: A local fast-food restaurant has determined that 10% of drive-thru orders are filled incorrectly. Suppose 5 orders are randomly selected. what is the probability that more than one

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Question 432592: A local fast-food restaurant has determined that 10% of drive-thru orders are filled incorrectly. Suppose 5 orders are randomly selected. what is the probability that more than one of the orders is filled incorrectly?
Answer by edjones(8007) About Me  (Show Source):
You can put this solution on YOUR website!
p=.9, q=.1
p^5+5p^4q=.91854 probability one or none filled incorrectly.
1-.91854=.08146 the probability that more than one of the orders is filled incorrectly.
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Ed