PROBABILITY
1. In a simultaneous toss of 2 coins then find the
probability of two tails?
a.1/2 b.1/4
c.1/3 d.1/5
2. In a simultaneous toss of 2 coins then find the
probability of exactly one tail?
a.1/2 b.1/4
c.1/3 d.1/5
3. In a simultaneous toss of 2 coins then find the
probability of no tails?
a.1/2 b.1/4
c.1/3 d.1/5
4. In a simultaneous toss of 3 coins then find the
probability of all are heads?
a.1/2 b.1/4
c.1/3 d.1/8
5. In a simultaneous toss of 3 coins then find the
probability of exactly 2 heads?
a.1/2 b.3/8
c.1/3 d.2/5
6. In a simultaneous toss of 3 coins then find the
probability of at least 2 heads?
a.1/2 b.1/4
c.1/3 d.1/5
7. In a simultaneous toss of 3 coins then find the
probability of at least 2 head and 1 tail?
a.1/2 b.3/4
c.1/3 d.2/5
8. In a simultaneous toss of 4 coins at once then find the
probability of exactly 3 tails?
a.1/2 b.1/4
c.1/3 d.1/5
9. In a simultaneous toss of 4 coins at once then find the
probability of at least 1 tail?
a.1/2 b.9/14
c.1/13 d.15/16
10. In single throw of two dice, find the probability of
getting a total of 3 or 5.
a.1/2 b.1/4
c.1/3 d.1/6
11. In single throw of two dice, find the probability of
getting a total of 12.
a.1/2 b.1/4
c.1/36 d.1/15
12. In single throw of two dice, find the probability of
getting a total of 11.
a.1/2 b.1/4
c.1/18 d.1/15
13. In single throw of two dice, find the probability of a
doublet.
a.1/2 b.1/4
c.1/6 d.1/5
14. In single throw of three dice, find the probability of
getting a total of 5.
a.1/2 b.1/24
c.1/3 d.1/36
15. One card is drawn at random from the well shuffled pack
of 52 cards. What is the
probability of picking
a. a Black card
a.1/2 b.1/4
c.1/3 d.1/5
b. an Ace of spade or the jack of diamond
a.1/26 b.1/24
c.1/3 d.1/5
c. card is either red or a king
a.1/2 b.1/14
c.1/3 d.7/13
d. an Ace cards
a.1/2 b.1/4
c.1/13 d.1/15
e. a Club cards
a.1/2 b.1/4
c.1/3 d.1/5
f. a Red Queen
a.1/2 b.1/4
c.1/13 d.1/26
g. either a King or a Spade
a.1/2 b.3/4
c.1/3 d.4/13
h. either a Heart or a King
a.1/2 b.1/4
c.4/13 d.1/5
16. A bag contains 6 Red balls and 4 Yellow balls. Four balls are picked at random, what is the probability that 3 are red and one is yellow.
a.8/21 b.1/14
c.1/3 d.1/16
17. A bag contains 6 Red balls and 4 Yellow balls. Three
balls are picked at random, what is the probability that one is red ball.
a.3/10 b.1/14
c.1/13 d.1/16
18. A bag contains 6 Red balls and 4 Yellow balls. Two balls
are picked at random, what is the probability that either 2 are red or 2 are
yellow.
a.1/2 b.1/4
c.7/15 d.7/16
19. A bag contains 6 Red balls and 4 Yellow balls. Three
balls are picked at random, what is the probability that none is red.
a.1/20 b.1/24
c.1/30 d.1/46
20. A bag contains 6 Red balls and 4 Yellow balls. Four
balls are picked at random, what is the probability that at least one is
red.
a.101/102 b.209/210
c.11/333 d.15/68
21. A bag contains 6 Red balls and 4 Yellow balls. Three
balls are picked at random, what is the probability that at most 2 are red.
a.1/2 b.3/4
c.1/3 d.5/6
22. A bag contains 6 Red balls and 4 Yellow balls. Four
balls are picked at random, what is the probability that 3are red and 1 is
yellow or 2 are red and two are yellow.
a.17/21 b.11/14
c.13/23 d.13/16
23. A bag contains 6 Red, 4 Yellow and 2 Green balls. Four
balls are picked at random, what is the probability that two are red, one is
yellow and one is green.
a.1/20 b.1/24
c.8/33 d.7/46
24. A bag contains 6 Red, 4 Yellow and 2 Green balls. Four
balls are picked at random, what is the probability that two are red.
a.5/11 b.1/8
c.1/30 d.1/6
25. A bag contains 6 Red, 4 Yellow and 2 Green balls. Five
balls are picked at random, what is the probability that none is yellow.
a.1/20 b.1/24
c.1/33 d.7/99
26. A bag contains 6 Red, 4 Yellow and 2 Green balls. Two
balls are picked at random, what is the probability that
a. Either both are red or both are green
a.7/20 b.8/25
c.8/33 d.1/46
b. Neither red nor green
a.1/11 b.1/24
c.1/30 d.1/46
27. A bag contains 6 Red, 4 Yellow and 2 Green balls. Three
balls are picked at random, what is the probability that at least one ball is
red.
a.10/11 b.15/29
c.17/30 d.11/46
28. A bag contains 6 Red, 4 Yellow and 2 Green balls. Three
balls are picked at random, what is the probability that at most two balls are
yellow.
a.54/55 b.11/24
c.17/30 d.11/46
29. A bag contains 6 Red, 4 Yellow and 2 Green balls. Three
balls are picked at random, what is the probability that two are red and one is
green or one is yellow and two are green.
a.17/110 b.11/24
c.17/30 d.17/46