Two stores sell a certain mp3 players store a has 34

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Two stores sell a certain MP3 players Store A has 34 of the sales 5 of which from MATH 213 at University of Kentucky

67 )   Find P ( M A Q ) . Give your answer as a fraction . 67 ) a = 0.3 , b = 0.7 , c = 0.3 , d = 0.6 , e = 0.1 , f = 0.2 , g = 0.5, h = 0.3
A ) 35 53
B ) 7 20
C ) 53 100
D ) 1 2
68 )   One urn has 4 red balls and 1 white ball ; a second urn has 2 red balls and 3 white balls . A single card is randomly selected from a standard deck . If the card is less than 5 aces count as 1 , a ball is drawn out of the first urn ; otherwise a ball is drawn out of the second urn . If the drawn ball is red , what is the probability that it came out of the second urn ?
69 )   Two shipments of components were received by a factory and stored in two separate bins . Shipment I has 2 % of its contents defective , while shipment II has 5 % of its contents defective . If it is equally likely an employee will go to either bin and select a component randomly , what is the probability that a defective component came from shipment II ?
70 )   Two stores sell a certain MP3 players . Store A has 34 % of the sales , 5 % of which are of defective items , and store B has 66 % of the sales , 1 % of which are of defective items . The difference in defective rates is due to different levels of pre - sale checking of the product . A person receives a defective item of this product as a gift . What is the probability it came from store B ?
71 )   The incidence of a certain disease on the island of Tukow is 4 % . A new test has been developed to diagnose the disease . Using this test , 91 % of those who have the disease test positive while 4 % of those who do not have the disease test positive ( false positive ) . If a person tests positive , what is the probability that he or she actually has the disease ?
A ) 0.856
B ) 0.91
C ) 0.438
D ) 0.487
72 )   Quality Motors has three plants . Plant 1 produces 35 % of the car output , plant 2 produces 20 % and plant 3 produces the remaining 45 % . One percent of the output of plant 1 is defective , 1.8 % of the output of plant 2 is defective and 2 % of the output of plant 3 is defective . The annual total production of Quality Motors is 1,000,000 cars . A car chosen at random from the annual output and is found defection . What is the probability that it came from plant 2 ?
73 )   In Cumberland County , 55 % of registered voters are Democrats , 30 % are Republicans and 15 % are independent . During a recent election , 35 % of the Democrats voted , 65 % of the Republicans voted , and 75 % of the independent voted . What is the probability that someone who voted is a Democrat ?
74 )   In Cumberland County , 55 % of registered voters are Democrats , 30 % are Republicans and 15 % are independent . During a recent election , 35 % of the Democrats voted , 65 % of the Republicans voted , and 75 % of the independent voted . What is the probability that someone who voted is a Republican ?
75 )   An water well is to be drilled in the desert where the soil is either rock , clay or sand . The probability of rock P ( R ) = 0.53 . The clay probability is P ( C ) = 0.21 . The sand probability is P ( S ) 75 ) = 0.26 . It if it rock , a geological test gives a positive result with 35 % accuracy . If it is clay , this test gives a positive result with 48 % accuracy . The test gives a 75 % accuracy for sand . Given the test is positive , what is the probability that soil is rock , P( rock | positive ) ?
A ) P(rock | positive ) = 0.53
B ) P( rock | positive ) = 0.405
C ) P(rock | positive ) = 0.385
D ) P( rock | positive ) = 0.209
76 )   An water well is to be drilled in the desert where the soil is either rock , clay or sand . The probability of rock P ( R ) = 0.53 . The clay probability is P ( C ) = 0.21 . The sand probability is P ( S ) 76 ) = 0.26 . It if it rock , a geological test gives a positive result with 35 % accuracy . If it is clay , this test gives a positive result with 48 % accuracy . The test gives a 75 % accuracy for sand . Given the test is positive , what is the probability that soil is clay , P( clay | positive ) ?
77 )   An water well is to be drilled in the desert where the soil is either rock , clay or sand . The probability of rock P ( R ) = 0.53 . The clay probability is P ( C ) = 0.21 . The sand probability is P ( S ) 77 ) = 0.26 . It if it rock , a geological test gives a positive result with 35 % accuracy . If it is clay , this test gives a positive result with 48 % accuracy . The test gives a 75 % accuracy for sand . Given the test is positive , what is the probability that soil is rock , P( sand | positive ) ?
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Chapter 6 / Exercise 6.121
Statistics for Management and Economics + XLSTAT Bind-in
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70)Two stores sell a certain MP3 players. Store A has 34% of the sales, 5% of which are of defectiveitems, and store B has 66% of the sales, 1% of which are of defective items. The difference indefective rates is due to different levels of pre-sale checking of the product. A person receivesa defective item of this product as a gift. What is the probability it came from store B?70)A)0.5667B)0.7083C)0.275D)0.22Answer:C
71)The incidence of a certain disease on the island of Tukow is 4%. A new test has been developedto diagnose the disease. Using this test, 91% of those who have the disease test positive while4% of those who do not have the disease test positive (false positive). If a person tests positive,what is the probability that he or she actually has the disease?71)
13
We have textbook solutions for you!
The document you are viewing contains questions related to this textbook.
The document you are viewing contains questions related to this textbook.
Chapter 6 / Exercise 6.121
Statistics for Management and Economics + XLSTAT Bind-in
Keller
Expert Verified
72)Quality Motors has three plants. Plant 1 produces 35% of the car output, plant 2 produces 20%and plant 3 produces the remaining 45%. One percent of the output of plant 1 is defective, 1.8%of the output of plant 2 is defective and 2% of the output of plant 3 is defective. The annualtotal production of Quality Motors is 1,000,000 cars. A car chosen at random from the annualoutput and is found defection. What is the probability that it came from plant 2?72)
73)In Cumberland County, 55% of registered voters are Democrats, 30% are Republicans and 15%are independent. During a recent election, 35% of the Democrats voted, 65% of the Republicansvoted, and 75% of the independent voted. What is the probability that someone who voted is aDemocrat?73)
74)In Cumberland County, 55% of registered voters are Democrats, 30% are Republicans and 15%are independent. During a recent election, 35% of the Democrats voted, 65% of the Republicansvoted, and 75% of the independent voted. What is the probability that someone who voted is aRepublican?74)A)0.385B)0.065C)0.39D)0.225Answer:C
75)An water well is to be drilled in the desert where the soil is either rock, clay or sand. Theprobability of rock P(R)=0.53. The clay probability is P(C)=0.21. The sand probability is P(S)=0.26. It if it rock, a geological test gives a positive result with 35% accuracy. If it is clay, thistest gives a positive result with 48% accuracy. The test gives a 75% accuracy for sand. Giventhe test is positive, what is the probability that soil is rock, P(rock | positive)?75)