Ques. Shikhar has a bag with 2 balls, each of which can be black or white with equal probability. Now, he draws out a ball and it turns out to be black. After this event, what is the probability that both balls are black?
Op 1: 1/2
Op 2: 1/4
Op 3: 1
Op 4: None of these
Op 5:
Correct Op : 1
Ques. A coin is tossed thrice. What is the probability that the first toss of coin lands head, second tail and third lands tail as well?
Op 1: 1/16
Op 2: 3/8
Op 3: 1/8
Op 4: None of these
Op 5:
Correct Op : 3
Ques. The probability of occurrence of event A is 0.1 and that of event B is 0.2. The events are mutually exclusive. What is the probability of occurrence of both A and B?
Op 1: 0.1
Op 2: 0
Op 3: 1
Op 4: Cannot be determined
Op 5:
Correct Op : 2
Op 1: 1/2
Op 2: 1/4
Op 3: 1
Op 4: None of these
Op 5:
Correct Op : 1
Ques. A coin is tossed thrice. What is the probability that the first toss of coin lands head, second tail and third lands tail as well?
Op 1: 1/16
Op 2: 3/8
Op 3: 1/8
Op 4: None of these
Op 5:
Correct Op : 3
Ques. The probability of occurrence of event A is 0.1 and that of event B is 0.2. The events are mutually exclusive. What is the probability of occurrence of both A and B?
Op 1: 0.1
Op 2: 0
Op 3: 1
Op 4: Cannot be determined
Op 5:
Correct Op : 2
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