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Author Question: Suppose an experiment consists of selecting two smoke detectors from a large shipment. Let the ... (Read 133 times)

fagboi

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on: Jul 25, 2018
Suppose an experiment consists of selecting two smoke detectors from a large shipment. Let the events be:
 
  A: The first detector is not defective,
  B: The second detector is defective.
 
  Are A and B mutually exclusive events?
 
  A) no B) yes C) cannot be determined

Question 2

The tread life of a particular brand of tire is a random variable best described by a normal distribution with a mean of 60,000 miles and a standard deviation of 1800 miles.
 
  What is the probability a certain tire of this brand will last between 56,220 miles and 56,760 miles?
  A) 0.4649 B) 0.4920 C) 0.0180 D) 0.9813


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alexanderhamilton

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Reply #1 on: Jul 25, 2018
Answer to Question 1

A

Answer to Question 2

C


fagboi

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Reply 2 on: Jul 25, 2018
Excellent

gcook

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Reply 3 on: Yesterday
Wow, this really help

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