A lot of 20 semiconductor chips contains 5 that are defective. Two are selected randomly, without replacement, from the lot. What is the probability that the second one selected is defective given that the first one was defective? 4/20 4/19 O 1/19 D Question 3 is Suppose A and B are mutually exclusive events. What is P(A|B)? 1/2
A lot of 20 semiconductor chips contains 5 that are defective. Two are selected randomly, without replacement, from the lot. What is the probability that the second one selected is defective given that the first one was defective? 4/20 4/19 O 1/19 D Question 3 is Suppose A and B are mutually exclusive events. What is P(A|B)? 1/2
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Transcribed Image Text:A lot of 20 semiconductor chips contains 5 that
are defective. Two are selected randomly,
without replacement, from the lot. What is the
probability that the second one selected is
defective given that the first one was
defective?
4/20
4/19
О 1/19
D Question 3
is
Suppose A and B are mutually exclusive events.
What is P(A|B)?
O 1/2

Transcribed Image Text:Samples of a cast aluminum part are classified
on the basis of surface finish and length
measurements. The results of 100 parts are
summarized as follows:
Excellent
Good Length
Length
Excellent
80
2
Finish
Good Finish
10
We define 2 events:
A: A selected part has excellent finish
B: A selected part has excellent length
What are P(A|B) and P(B|A)?
O P(A|B)=80/82, P(B|A)=80/9O
O P(A|B)=80/100, P(B|A)=1
O P(A|B)=80/90, P(B|A)=80/82
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