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Counting
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Problem 9
Problem 10
Counting
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4. Probability / Counting / Problem 5
Problem 5
A batch of
200
200
lightbulbs includes exactly
3
3
that are defective. If a quality inspector randomly selects
3
3
lightbulbs without replacement, what is the probability that at least one defective bulb is found in the sample?
A
0.05
0.05
B
0.04
0.04
C
0.95
0.95
D
0.50
0.50
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