GATE CE 2018 Set 2 — Question 29
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Engineering Mathematics → Probability → Conditional Probability
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Question
Probability (up to one decimal place) of consecutively picking 3 red balls without replacement from a box containing 5 red balls and 1 white ball is ______
Correct answer
0.5 to 0.5
Solution
Total number of balls = 5 (red) + 1 (white) = 6.
Probability of picking 3 red balls consecutively without replacement is:
.
Probability of picking 3 red balls consecutively without replacement is:
.
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