EXAM P QUESTIONS OF THE WEEK
S. Broverman, 2005
Question 7  Week of September 5
A production process for electronic components has followup a inspection procedure. Inspectors
assign a rating of high, medium or low to each component inspected. Long run inspection data
have yielded the following probabilities for component ratings:
TÐ
ÑœÞ& ß TÐ
ÑœÞ% ß TÐ
ÑœÞ"
high
medium
low
.
Find the probability that in the next batch of 5 components inspected, at least 3 are rated high,
and at most 1 is rated low.
A) Less than .26
B)
At least .26 but less than .32
C)
At least .32 but less than .38
D)
At least .38 but less than .44
E)
At least .44
The solution can be found below.
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View Full DocumentQuestion 7 Solution
We can use the multinomial distribution. For a batch of
components tested, the probability that
8
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 Spring '10
 Diaz
 Conditional Probability, Probability theory, Þ, Long run inspection, ÐÞ

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