Thread: 2 Binomial Probability Questions
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Old June 7th, 2009, 08:04 AM
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Quote:
Originally Posted by xibeleli View Post
The probability of an integrated circuit passing a quality test is 0.86. In a batch of 10 integrated circuits, find the probability that
iii) at least 2 will fail
iv) fewer than 2 will fail
The probability that none or one fails is \sum\limits_{k = 0}^1 {\binom{10}{k}\left( {.86} \right)^{10 - k} \left( {.14} \right)^k }.
That answers (iv).
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