SOLUTION: Question 1127222: A wheel bearing factory rejects bearings if they are either oversize or undersize. The probability that a bearing is oversize is 0.004 while the probability that

Question 1127613: Question 1127222: A wheel bearing factory rejects bearings if they are either oversize or undersize. The
probability that a bearing is oversize is 0.004 while the probability that it is undersize
is 0.01.
(a) Are oversize rejection and undersize rejection events mutually exclusive?
(b) What is the probability that a bearing selected at random is not within size limits?
(c) What is the probability that a bearing selected at random is correctly sized?
Answer by Boreal(9352) About Me (Show Source):
You can put this solution on YOUR website!
a. Yes. A bearing can't be both undersize and oversize.
b. The probability is the sum or 0.014 that it is not within size limits.
c. correct size probability is the complement or 0.986
In Question above, bearings are rejected if they are outside size limits. Incorrectly sized
bearings are placed in a bin. If a bearing is selected at random from the rejects bin,
what is the probability that it is undersize?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Question 1127222: A wheel bearing factory rejects bearings if they are either oversize or undersize. The
probability that a bearing is oversize is 0.004 while the probability that it is undersize
is 0.01.
(a) Are oversize rejection and undersize rejection events mutually exclusive?
(b) What is the probability that a bearing selected at random is not within size limits?
(c) What is the probability that a bearing selected at random is correctly sized?
Answer by Boreal(9352) About Me (Show Source):
You can put this solution on YOUR website!
a. Yes. A bearing can't be both undersize and oversize.
b. The probability is the sum or 0.014 that it is not within size limits.
c. correct size probability is the complement or 0.986
In Question above, bearings are rejected if they are outside size limits. Incorrectly sized
bearings are placed in a bin. If a bearing is selected at random from the rejects bin,
what is the probability that it is undersize?
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For every 1000 bearings 4 are oversize and 10 are undersize
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Ans:: P(undersize in reject bin) = 10/14 = 0.714 or 71.4%
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Cheers,
Stan H.
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