PROBABILITY MCQ SET 3
1. Four coins are tossed simultaneously , what is the probability that at least three coins get heads or tails?
(a) 5/8
(b) 5/11
(c) 7/64
(d) 1/8
Answer: A
2. A coin is tossed 5 times , what is a probability of getting exactly 2 heads?
(a) 8/20
(b) 6/45
(c) 5/16
(d) 4/51
Answer: C
3. A coin is tossed 8 times , what is a probability of getting exactly 6 tails ?
(a) 7/20
(b) 7/12
(c) 77/13
(d) 7/64
Answer: D
4. A coin is tossed 9 times . Find the probability of atmost 2 tails .
(a) 23/250
(b) 25/256
(c) 23/256
(d) 27/250
Answer: C
5. A coin is tossed 7 times . Find the probability of atleast 2 tails .
(a) 14/15
(b) 16/54
(c) 18/11
(d) 15/16
Answer: D
6. A dice is thrown , find the probability of :
(i) A prime number
(a) 1/3
(b) 1/2
(c) 2/3
(d) 1/4
Answer: B
7. A dice is thrown , find the probability of :
(ii) A multiple of 2 or 3
(a) 3/4
(b) 2/3
(c) 4/5
(d) 5/8
ย Answer: B
8. A dice is thrown , find the probability of :
(iii) A number greater than 4
(a) 1/5
(b) 2/3
(c) 5/8
(d) 1/3
Answer: D
9. A dice is thrown twice , what is the probability of getting a sum of 7 when thrown twice?
(a) 5/18
(b) 1/18
(c) 1/9
(d) 1/6
Answer: D
10. Two dice are thrown simultaneously . Find the probability of
(i) Sum as 8
(a) 5/36
(b) 5/18
(c) 1/6
(d) 11/36
Answer: A
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