probability MCQs – Page 3

Practise focused probability questions with marked answers for exam preparation and subject revision.

probability Mcqs
41. A list of sample _________ is called sample space?
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A. Events

B. Distinct

C. Piont

D. Subset

42. If P(B/A)= 0.25 and P(A?B) = 0.2 then P(A) will equal to _______________?
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A. 0.8

B. 0.45

C. 0.75

D. 0.05

43. The probability of drawing a picture card out of 52 cards is : ______________?
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A. 13/52

B. 12/52

C. Mar-52

D. 16/52

44. A set of events is said to be independent if probability of head on tossing a coin is _______________?
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A. 1

B. 3-Feb

C. 1/2

D. 4-Mar

45. If a card is chosen from a standard deck of cards, what is the probability of getting a diamond (?) or a club (?)?
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A. Dec-52

B. 13/52

C. 20/52

D. 26/52=1/2
46. The probability of even/odd numbers when a fair die is rolled is____________?
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A. Jan-36

B. 6-Jan

C. 3/6

D. 6-Feb

47. Which of the following is not an example of a discrete probability distribution ?
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A. The sale or purchase price of a house

B. Non of these

C. Whether or no t a home has a swimming pool in it.

D. The number of bedrooms in a house
48. If P(A/B)=1/4 and P(A?B) =1/5 then P(B) is ________________?
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A. 9-Jan

B. 20-Jan

C. 4/5

D. 0

49. The special rule of multiplication of probability, the events must be ______________?
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A. Mutually exclusive

B. Bayesian

C. Empirical

D. Independent
50. The square bracket is an finite G. Series is obtained by formula _________________?
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A. a/1-rn

B. a/1-r

C. a/(1-r)n

D. 1/1-rn

51. The probability of drawing a diamond card out of 52 cards is ______________?
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A. 2-Jan

B. 0

C. Apr-52

D. 13/52
52. The joint probability is _______________?
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A. The likelihood of two events happening given that another event has already ha

B. Also called Prior probability

C. Based on two mutually exclusive events

D. The likelihood of two events happening together
53. If A and B are mutually exclusive then?
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A. P(AeitherB)=0

B. P(AnorB)=0

C. P(AorB) =0

D. P(AandB)=0
54. The probability of drawing an even number in a toss of a balanced die ______________?
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A. 6-Feb

B. 6-Jan

C. 6-Jun

D. 3/6
55. All experiments have _______ properties in common?
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A. Three

B. Two

C. One

D. Four

56. A box containing 12 balls of color 6 red and 6 white. A ball of white selected ball finds the probability of white____________?
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A. 12-Dec

B. 12-Jul

C. 12-Apr

D. 6/12
57. An events that contains the finite number point the sample space is called __________________?
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A. values

B. Continuous

C. Finite

D. Random
58. A coin is so weighted that P (T) = 2P(H) then P(H) is _______________?
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A. 2-Jan

B. 1/3

C. 1

D. 3-Feb

59. Addition Law of probability for mutually exclusive event is equal _______________?
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A. P(AUB) = P(A) + P(B) P(A?B)

B. P(A?B) = P(A). P(B

C. P(A?B) = P(A) + P(B) + P(A?B)

D. P(AUB)=P(A) + (B)
60. __________ are said to be exhaustive if they constitute the entire sample space?
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A. Equally

B. Objects

C. Events

D. Outcomes