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Probability MCQ Question with Answer

Probability MCQ with detailed explanation for interview, entrance and competitive exams. Explanation are given for understanding.

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Question No : 1
Bag contain 10 back and 20 white balls, One ball is drawn at random. What is the probability that ball is white

1
23
13
43

Question No : 2
A box contains 5 green, 4 yellow and 3 white balls. Three balls are drawn at random. What is the probability that they are not of same colour.

5255
355
4144
344

Question No : 3
From a pack of 52 cards, two cards are drawn together, what is the probability that both the cards are kings

2121
2221
1221
113

Question No : 4
A speaks truth in 75% of cases and B in 80% of cases. In what percentage of cases are they likely to contradict each other, narrating the same incident

30%
35%
40%
45%

Question No : 5
A box contains 20 electric bulbs, out of which 4 are defective. Two bulbs are chosen at random from this box. The probability that at least one of these is defective is

719
619
519
419

Question No : 6
From a pack of 52 cards, 1 card is drawn at random. Find the probability of a face card drawn.

413
152
14
None of above

Question No : 7
A card is drawn from a pack of 52 cards. The probability of getting a queen of club or a king of heart is

113
213
126
152