Probability-Conditional Probability (ISS Statistics Paper I (New 2016 MCQ Pattern)): Questions 5 - 5 of 5

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Question number: 5

» Probability » Conditional Probability

MCQ▾

Question

Suppose that five good bulbs and two defective ones have been mixed up. To find the defective bulbs, we test them one-by-one, at random and without replacement. What is the probability that we are lucky and find both of the defective fuses in the first two tests?

Choices

Choice (4) Response
a.

221

b.

142

c.

342

d. None of the above

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