probability MCQs – Page 2

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

probability Mcqs

21. The probability that a number selected at random from the first 50 natural numbers is a composite number is__________?
0

A. 17/25

B. 21/25

C. 25-Apr

D. 25-Aug

22. A box contains nine bulbs out of which 4 are defective. If four bulbs are chosen at random, find the probability that all the four bulbs are defective.
0

A. 62/63

B. Jan-63

C. 125/126

D. 1/126

23. Three 6 faced dice are thrown together. The probability that all the three show the same number on them is -.
0

A. 1/216

B. 1/36

C. 12-May

D. 9-May

24. If a number is chosen at random from the set {1, 2, 3, ., 100}, then the probability that the chosen number is a perfect cube is___________?
0

A. 1/25

B. 10-Jan

C. 13-Apr

D. 2-Jan

25. In a drawer there are 4 white socks, 3 blue socks and 5 grey socks. Two socks are picked randomly. What is the possibility that both the socks are of same color?
0

A. Feb-33

B. 1

C. 19/66

D. 11-Apr

26. A basket has 5 apples and 4 oranges. Three fruits are picked at random. The probability that at least 2 apples are picked is__________?
0

A. 20-Sep

B. 25/42

C. 23-Oct

D. 41/42

27. What is the probability that a leap year has 53 Sundays and 52 Mondays?
0

A. 0

B. 1/7

C. 7-Feb

D. 7-May

28. Three 6 faced dice are thrown together. The probability that no two dice show the same number on them is__________?
0

A. Jan-36

B. 12-May

C. 12-Jul

D. 5/9

29. What are the chances that no two boys are sitting together for a photograph if there are 5 girls and 2 boys?
0

A. 7-Apr

B. 7-Feb

C. 5/7

D. 21-Jan

30. In a party there are 5 couples. Out of them 5 people are chosen at random. Find the probability that there are at the least two couples?
0

A. 16/21

B. 14-Sep

C. 5/21

D. 14-May

31. A box contains 3 blue marbles, 4 red, 6 green marbles and 2 yellow marbles. If four marbles are picked at random, what is the probability that none is blue?
0

A. 17/91

B. 65/91

C. 33/91

D. 51/91

32. The picture cards having in total fifty two cards is equal_________________?
0

A. 16

B. Non of these

C. 12

D. 24

33. . If the occurrence of one event means that another cannot happen, then the events are _______________?
0

A. Mutually Exclusive

B. Bayesian

C. Empirical

D. Independent

34. If an event consists of only one sample point is called _____________?
0

A. Space

B. Exactly

C. Elementary event

D. Appeared

35. The probability that the sum is odd if two dice are thrown:_________________?
0

A. Jun-36

B. Dec-36

C. Sep-36

D. 18/36

36. In which approach to probability the outcomes are equally likely to occur ?
0

A. Independent

B. Classical Probability

C. Relative Frequency

D. Subjective Probability

37. Which of the following is not a correct statement about a Probability _________________?
0

A. It must have a value between 0 and 1

B. It is the collection of several experiment

C. A value near 0 means that the event is not likely to occur/happens

D. It can be reported as a decimal or a fraction

38. The probability of getting exactly three tails when three balanced coins are tossed once _______________?
0

A. 8-Feb

B. 1/8

C. 8-May

D. 8-Jul

39. A fair coin toss the total events in sample space equal_____________?
0

A. 16

B. 36

C. 6

D. 7

40. If the occurrence of excludes the occurrence of the other is called ________________?
0

A. Exchaustive

B. Mutually exclusive

C. Likely

D. Probability

Showing 21 to 40 of 86 mcqs