Let A and B are two events and P(A') = 0.3, P(B) = 0.4, P(A∩B') = 0.5, then P(A∪B') is
0.5
0.8
1
0.1
If P (A∩B) = 1/3, P(A∪B) = 5/6 and P(A) = 1/2, then which of the following is correct?
A and B are independent events
A and B are mutually exclusive events
P(A) = P(B)
P(A) < P(B)
A dice is thrown 100 times, getting an even number is considered a success. The variance of the number of success is
10
25
18
If 4 P(A) = 6 P(B) = 10 P (A∩B) = 1, then (B/A) is
3/5
7/10
19/60
2/5
The probability that atleast one of A and B occurs is 0.6. If A and B occur simultaneously units probability 0.3, then P(A') + P(B') is
0.9
0.15
1.1
1.2
P(A) = 4/5, P(B') = 2/5 and P(A∩B) = 1/2, then P(A∩B') is
3/10
5/2
5/7
The probability that at least one of the events A and B occurs is 0.6. If A and B occur simultaneously with probability 0.2, then is
0. 4
1.4
A complete cycle of a traffic light take 60s. During each cycle the light is green for 255, yellow for 5 s and red for 30s. At a randomly chosen time, the probability that the light will not be green, is
1/3
1/4
4/12
7/12
If A and B are mutually exclusive events with P(A) = 1/2 x P(B) and AυB = S, then P(A) is equal to
2/3
3/4
A coin and six faced die, both unbiased, are thrown simultaneously. The probability of getting a head on the coin and an odd number on the die, is
1/2
