SOLUTION: Of all the new vehicles of a certain model that are sold, 14% require repairs to be done under warranty during the first year of service. A particular dealership sells 20 such vehi

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Question 1022668: Of all the new vehicles of a certain model that are sold, 14% require repairs to be done under warranty during the first year of service. A particular dealership sells 20 such vehicles. What is the probability that fewer than 3 of them require warranty repairs?

Carry four significant digits throughout your calculations.
Answer by robertb(5830) About Me  (Show Source):
You can put this solution on YOUR website!
Use the binomial pmf:
p%28x%29+=+C%2820%2Cx%290.86%5E%2820-x%29%2A0.14%5Ex
The answer should be p(0) + p(1) + p(2), or


Just use your scientific calculator to evaluate...