A box contains 7 nine-volt transistor batteries of which two are known to be defective. The batteries are selected one at a time without replacement and tested until a non-defective one is found. (i) Calculate the probability that three batteries are tested. (ii) What is the probability the second selection is defective given that the first is nondefective?

Q: A box contains 7 nine-volt transistor batteries of which two are known to be defective. The…

A: Number of total nine volt transistor batteries are 7. The number of defective batteries are 2.

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A: The probability of type-A DNA = 19/100 = 0.19   n = 23

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A: given data p(second product) =p=0.17 ∴ p(non second) =q=0.83sample size (n) = 9

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A:

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Q: Two regular six sided dice are tossed, one at a time. compute the probability that the pips on both…

A: For each die, there are 6 possible outcomes.  So for 2 six-sided dice, there are 62=36 outcomes.…

Q: A manufacturing process that produces electron tubes is known to have a 10% defective rate. Suppose…

A: X~B(n,p)P(X=x)=nxpx(1-p)(n-x)    x=0,1,2,3,...,nE(x)=mean=npvariance=np(1-p)

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A:

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Q: In a county where factories have to be tested for the emission of pollutants, 32% of all factories…

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Q: Twenty-two percent of all telephones of a certain type are submitted for service while under…

A: P(Replaced|submitted) = 0.40 P(submitted) = 0.22 P=p(replaced) =P(Replaced}submitted)P(submitted)…

Q: A company that produces fine crystal knows from experience that 10% of its goblets have cosmetic…

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A:

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A:

Q: ertain blood test is 99.5% effective at detecting Foreign Bloodborne Pathogens (such as the…

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Q: Based on a Comcast​ survey, there is a 0.8 probability that a randomly selected adult will watch​…

A:

Q: A firm has two computer systems available for processing telephone orders. At any given time, system…

A: Independent Events:Two events are said to be independent if occurrence of one event does not affect…

Q: The probability of a randomly selected adult in one country being infected with a certain virus is…

A: It is provided that the probability, in one country a randomly selected adult being infected with a…

Q: To avoid being stuck with a shipment of defective HDTV sets, a large retailer tests a random sample…

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A: given data   6 - contain errors 43 - error free ____________________ 49 - total returns filled

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A: Given data Sample of offspring contains 367 green peas and 40 yellow peas Total peas = 367 + 40 =…

Q: A company that produces fine crystal knows from experience that 15% of its goblets have cosmetic…

A: Given that: Success probability, p=0.15 The formula of binomial probability distribution is given…

Q: A safety engineer claims that only 30% of all workers wear safety helmets when they eat lunch at the…

A: The Probability mass function for Binomial distribution is given by                     P(X=x)=ncx…