The probability that a certain machine turns out a defective item is 5%. Find the probabilities that in a set of 75 items: (a) Exactly 5 defective items (b) No defective items (c) At least one defective item

College Algebra
7th Edition
ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter9: Counting And Probability
Section9.4: Expected Value
Problem 1E: If a game gives payoffs of $10 and $100 with probabilities 0.9 and 0.1, respectively, then the...
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The probability that a certain machine turns out a defective item is 5%. Find the probabilities that in a set of 75 items:

(a) Exactly 5 defective items

(b) No defective items

(c) At least one defective item

(d) What is the expected value of the number of defective items?

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