Asked by mason
The quality-control department of Starr Communications, the manufacturer of video-game cartridges, has determined from records that 1.7% of the cartridges sold have video defects, 0.9% have audio defects, and 0.2% have both audio and video defects.
a:What is the probability that a cartridge purchased by a customer will have a video or audio defect?
b: What is the probability that a cartridge purchased by a customer will not have a video or audio defect?
a:What is the probability that a cartridge purchased by a customer will have a video or audio defect?
b: What is the probability that a cartridge purchased by a customer will not have a video or audio defect?
Answers
Answered by
Reiny
prob(video OR audio) = Prob(video) + prob(audio) - prob(video AND audio)
= .017 + .009 - .002
=
for b) just find 1 - (above prob)
= .017 + .009 - .002
=
for b) just find 1 - (above prob)
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