A person draws a card from a pack of playing cards, replaces it and shuffles the pack. He continues doing this until he draws a spade. The chance that he will fail the first two times is
9/64
1/64
1/16
9/16
What is the probability of getting a head while tossing a coin?
1/2
1
2
0
If 4 P(A) = 6 P(B) = 10 P (A∩B) = 1, then (B/A) is
3/5
7/10
19/60
2/5
If A and B are two independent events such that P(A∩B') = 3/25 and P(A' ∩B) = 8/25, then P(A) is
1/5
3/8
4/5
If the random variable X takes the values x1,x2,x3,....x10 with probabilities P(X = xi) = Ki then the value of K is equal to.
1/10
1/4
1/55
7/12
A number is chosen at random among the first 120 natural numbers. The probability if the number chosen being a multiple of 5 or 15 is
1/8
1/24
1/6
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
0.1
The probability that in the toss of two dice, we obtain the sum 7 or 11, is
1/18
2/9
23/108
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
1.2
1.4
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)
