The theory of probability involves the study of a-
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Question 2 of 25
2. Question
1 points
Probability theory originated in the middle of the-
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Question 3 of 25
3. Question
1 points
Initially, probability was a branch of-
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Question 4 of 25
4. Question
1 points
The terms ‘chance’ and ‘probability’ are synonymous.
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Question 5 of 25
5. Question
1 points
The mathematical study of randomness is called probability theory.
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Question 6 of 25
6. Question
1 points
An experiment is known to be random if the results of the experiment-
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Question 7 of 25
7. Question
1 points
If P(A) = P(B), then
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Question 8 of 25
8. Question
1 points
If an unbiased coin is tossed once, then the two events Head and Tail are-
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Question 9 of 25
9. Question
1 points
If P(A) =P(B), then the two events A and B are-
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Question 10 of 25
10. Question
1 points
If P(A/B) = P(A), then-
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Question 11 of 25
11. Question
1 points
If P(A)=0, then the event A-
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Question 12 of 25
12. Question
1 points
If P(A)=1, then the event A is known as-
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Question 13 of 25
13. Question
1 points
P(B/A) is defined only when-
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Question 14 of 25
14. Question
1 points
P(A/B’) is defined only when-
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Question 15 of 25
15. Question
1 points
If P(A)=5/9, then the odds against the event A is-
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Question 16 of 25
16. Question
1 points
If A,B and C are mutually exclusive and exhaustive events, then P(A)+P(B)+P(C) equals to-
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Question 17 of 25
17. Question
1 points
A bag contains 15 one rupee coins, 25 two rupee coins and 10 five rupee coins. If a coin is selected at random from the bag, then the probability of not selecting a one rupee coin is
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Question 18 of 25
18. Question
1 points
If a card is drawn at random from a pack of 52 cards, what is the chance of getting a Spade or an ace?
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Question 19 of 25
19. Question
1 points
If x and y are random variables having expected values as 4.5 and 2.5 respectively, then the expected value of (x-y) is-
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Question 20 of 25
20. Question
1 points
Two balls are drawn from a bag containing 5 white and 7 black balls at random. What is the probability that they would be of different colors?
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Question 21 of 25
21. Question
1 points
What is the chance of throwing at least 7 in a single cast with 2 dice?
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Question 22 of 25
22. Question
1 points
There are 10 balls numbered from 1 to 10 in a box. If one of them is selected at random, what is the probability that the number printed on the ball would be an odd number greater than 4?
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Question 23 of 25
23. Question
1 points
A, B and C are three mutually excursive and exhaustive events such that P(A)=2P(B)=3P(C). What is P(B)?
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Question 24 of 25
24. Question
1 points
For two independent events A and B, what is P(A+B), given P(A)=3/5 and P(B)=2,3?
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Question 25 of 25
25. Question
1 points
It is given that a family of 2 children has a girl, what is the probability that the other child is also a girl?
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