Expected value and variance of number of defective chips, Microeconomics

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Expected value and variance of number of defective chips

Suppose a microchip manufacturer produces 1 defective chip for every 30 they build. They randomly select 210 chips off the assembly line for quality control testing.

a) What is the expected value and variance of the number of defective chips?

b) What is the probability that they discover exactly 9 defective chips in this test? (You may leave your answer in terms of factorials and exponents, if you prefer.)

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Microeconomics: Expected value and variance of number of defective chips

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Microeconomics: Expected value and variance of number of defective chips

Reference No:- TGS046527

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