The document discusses various probability problems, including outcomes from coin and dice tosses, card selections, and events in probability theory. It presents multiple scenarios with numerical probabilities for events such as drawing a black card or the sum of selected numbers. Additionally, it covers concepts like mutually exclusive events and probability calculations based on certain conditions.

1. C.S.VEERARAGAVAN
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2. When 7 coins are tossed, the number of total
outcomes is
67
64
128
256

3. What is the probability of drawing a black card
from a pack of cards?
1
4
3
4
1
9
1
2

4. When a dice is rolled, the probability of getting a
number greater than 6 is
0
1
1
9
2
9

5. If three dice are rolled together, the probability of the
same number appearing on them is
1
18
1
36
5
36
1
9

6. When two distinct numbers are selected from the set {1, 3, 5,
7, 9}, the probability that the sum of the numbers is even is
1
2
0
1
3
4

7. The probability of a sure event is
6
7
1
7
0
1

8. A and B are two mutually exclusive and exhaustive events.
If the probability of A is
3
5
, then the probability of
the non-occurrence of B is
3
5
2
5
1
5
4
5

9. A and à represent the occurrence and non-
occurrence of an event. Then P(A)+P(Ã) =
4
5
1
5
1
3
5

10. When a coin is tossed, the probability of
getting heads or tails is
0
1
3
5
2
5

11. When four dice are rolled, the probability that
the total score on them is the minimum or the
maximum is
3
648
3
245
1
648
1
324

12. When 6 letters are placed into the corresponding 6
addressed envelopes, the probability that exactly five
letters are placed into the corresponding envelopes is
3
1
0
2
5

13. In a leap year, the probability that February
has 5 Sundays and 5 Mondays is
1
0
1
5
4
5

14. A card is selected at random from a pack of
cards. What is the probability that it is a red
queen?
1
26
1
13
3
26
5
26

15. What is the probability that a year selected at
random is a leap year?
1
4
24
100
95
400
97
400

16. A and B are two events. If P(A) =
3
4
, P(B) =
4
7
and
P(AUB)=
5
6
then P(A∩B) =
41
84
10
21
43
84
1
42

17. The probability that Alekya is selected in the interview is
4
9
and the probability that Bhanu is selected is
5
7
. The
probability that neither of them is selected is
1
7
1
9
10
63
5
63

18. A, B,C are three mutually exclusive and collectively exhaustive
events of a certain random experiment.
If P(A) = 0.3, P(B) = 0.5 then P 𝐶
0.3
0.8
0.2
0.7

19. The range of P(A) is
[0,1]
(0,1]
[0,1)
(0,1)

20. A bag contains 5 red balls, 3 green balls, and 2 white
balls. If one ball is selected from the bag, the
probability that it is not white is
1
5
2
5
3
5
4
5