Concept explainers
a.
To Draw: a tree diagram that shows the
a.
Explanation of Solution
Given:
Total number of switches contain in one shipment is
And the number of bad switches is
Calculation:
There are two options, thus two branches are nedded at each knot:
The
b.
To find: the probability that both switches are defective.
b.
Answer to Problem 78E
Explanation of Solution
Given:
Total number of switches contain in one shipment is
And the number of bad switches is
Calculation:
Multiplying the corresponding probabilities so that to find the probability that both switches are defective.
Therefore,
Hence, the probability that both switches are defective is
Chapter 5 Solutions
The Practice of Statistics for AP - 4th Edition
Additional Math Textbook Solutions
Intro Stats, Books a la Carte Edition (5th Edition)
Statistics: The Art and Science of Learning from Data (4th Edition)
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