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Unformatted text preview: of computers:
Mac, Dell, and HP. 30% of the machines they sell are
Mac, 50% are Dell, and 20% are HP. Based on past
experience Acme executives know that the purchasers of
Mac machines will need service repairs with probability
.2, Dell machines with probability .15, and HP machines
with probability .25. Find the probability a customer will
need service repairs on the computer they purchased
from Acme. Independence
and Law of Total
Probability Independence
Law of Total
Probability Solution. 7.14 Notes Example 23
Let us assume that a speciﬁc disease is only present in 5
out of every 1,000 people. Suppose that the test for the
disease is accurate 99% of the time a person has the
disease and 95% of the time that a person lacks the
disease. Find the probability that a random person will
test positive for this disease. Independence
and Law of Total
Probability Notes Independence
Law of Total
Probability Solution. 7.15 Summary Independence
and Law of Total
Probability In this lecture, we learned
The concept of important
Special multiplication rule and law of total probability
Independence
Law of Total
Probability 7.16 Notes...
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This note was uploaded on 01/24/2014 for the course STAT 225 taught by Professor Martin during the Spring '08 term at Purdue UniversityWest Lafayette.
 Spring '08
 MARTIN
 Probability

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