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Get Full Access to Elementary Statistics - 12 Edition - Chapter 4.3 - Problem 9bsc
Get Full Access to Elementary Statistics - 12 Edition - Chapter 4.3 - Problem 9bsc

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Solution: Determining Whether Events Are Disjoint. For

ISBN: 9780321836960 18

Solution for problem 9BSC Chapter 4.3

Elementary Statistics | 12th Edition

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Problem 9BSC

Problem 9BSC

Determining Whether Events Are Disjoint. For Exercise, determine whether the two events are disjoint for a single trial. (Hint: Consider “disjoint” to be equivalent to “separate” or “not overlapping.”)

Randomly selecting a drug screening result and getting one that is a false negative.

Randomly selecting a drug screening result and getting one from someone who is not a drug user.

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Solution  9BSC

A person who is not a drug user cannot get the result false negative. So events ‘Randomly selecting a drug is screening result and getting one that is a false negative’ and ‘Randomly selecting a drug screening result and getting one from someone who is not a drug user.’ cannot occur simultaneously. Hence events are disjoint.

Step 2 of 3

Step 3 of 3

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