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First Calculator F- faulty NF = not faulty F NF Second Calculator P q F NF (d) The whole batch of calculators is rejected - NF Third Calculator either if the first two chosen are both faulty or The tree diagram shows a testing procedure on calculators, taken from a large batch. NF 1 Each time a calculator is chosen at randor, the probability that it is faulty (F) is 20 if a third one needs to be chosen and it is faulty. Calculate the probability that the whole hatch is rejected. F (e) In one month, 1000 batches of calculators are tested in this way. How many batches are expected to be rejected? NF

First Calculator F- faulty NF = not faulty F NF Second Calculator P q F NF (d) The whole batch of calculators is rejected - NF Third Calculator either if the first two chosen are both faulty or The tree diagram shows a testing procedure on calculators, taken from a large batch. NF 1 Each time a calculator is chosen at randor, the probability that it is faulty (F) is 20 if a third one needs to be chosen and it is faulty. Calculate the probability that the whole hatch is rejected. F (e) In one month, 1000 batches of calculators are tested in this way. How many batches are expected to be rejected? NF

College Algebra
College Algebra
7th Edition
ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter9: Counting And Probability
Section: Chapter Questions
Problem 3P: Dividing a Jackpot A game between two pIayers consists of tossing coin. Player A gets a point if the...
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First Sccond Third Calculator Calculator Calculator F NF NF F NF NF NF F- faulty NF = not faulty The tree diagram shows a testing procedure on calculators, taken from a large hatch. 1 Each time a calculator is chosen at randorn, the probability that it is faulty (F) is 20 (d) The whole batch of calculators is rejected either if the first two chosen are both faulty if a third one needs to be chosen and it is faulty. or Calculate the probability that the whole batch is rejected. (e) In one month, 1000 batches of calculators are tested in this way. How many batches are expected to be rejected?
Transcribed Image Text:First Sccond Third Calculator Calculator Calculator F NF NF F NF NF NF F- faulty NF = not faulty The tree diagram shows a testing procedure on calculators, taken from a large hatch. 1 Each time a calculator is chosen at randorn, the probability that it is faulty (F) is 20 (d) The whole batch of calculators is rejected either if the first two chosen are both faulty if a third one needs to be chosen and it is faulty. or Calculate the probability that the whole batch is rejected. (e) In one month, 1000 batches of calculators are tested in this way. How many batches are expected to be rejected?
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