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Chapter 5
MATH  200
Form A
1. Find the probability of getting exactly 4 correct items among 6 different requests from the
Yahoo search engine. In general, Yahoo is correct for 92% at the time.
______________________
2. Find the mean, standard deviation, and variance for the accompanying probability
distribution.
x
P(x)
1
0.40
2
0.26
3
0.20
4
0.10
5
0.04
mean:
_______________
standard deviation:
_______________
variance:
_______________
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View Full Document3. A company manufactures computers in batches of 10 and there is a 5% rate of defects.
(a)the mean number of failures per batch.
a. ______________
(b)
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 Spring '10
 Kazaryan
 Probability, Standard Deviation, Variance

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