In a manufacturing process, the probability that an item is faulty is 0.07. Items from those produced

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In a manufacturing process, the probability that an item is faulty is 0.07. Items from those produced are selected at random and tested.

a. Find the probability that the first faulty item is:

i. The 12th item tested

ii. Not one of the first 10 items tested

iii. One of the first eight items tested.

b. What assumptions have you made about the occurrence of faults in the items so that you can calculate the probabilities in part a?

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Cambridge International AS & A Level Mathematics Probability & Statistics 1 Coursebook

ISBN: 9781108407304

1st Edition

Authors: Dean Chalmers, Julian Gilbey

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Question Posted: Sep 14, 2021 02:10 AM

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In a manufacturing process, the probability that an item is faulty is 0.07. Items from those produced

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a Let p be the probability that an item is faulty and q 1p be the probability that an item is not fa...View the full answer

Cambridge International AS & A Level Mathematics Probability & Statistics 1 Coursebook

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