x27% of all telephones of a certain type are submitted for service while under warranty. Of these, 63% can be repaired whereas the remaining must be replaced under warranty. If a company purchases 10 of these telephones, what is the probability that exactly 2 will end up being replaced under warranty

Question

Dean

Mathematics

25 October, 20:33

x27% of all telephones of a certain type are submitted for service while under warranty. Of these, 63% can be repaired whereas the remaining must be replaced under warranty. If a company purchases 10 of these telephones, what is the probability that exactly 2 will end up being replaced under warranty

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Answers (1)

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Renee · Answer 1

I know the formula and believe I can answer the question, I just want to make sure I'm using the right probability, p from the equation bellow.

Using the equation: p (x) = (nx) px (1-p) n-x. I wanted to know if p=2/10?

Step-by-step explanation:

no steps just answer