In a probability distribution of random variable x, the sum of the probabilities is always.
less than 1
0
1
greater than 1
Two cards are drawn successively with replacement from a well-shuffled pack of 52 cards. The probability of drawing two aces is
1/13
1/13×1/17
1/52×1/51
1/13×1/13
Three distinct numbers are selected from first 100 natural numbers, then probability that all three numbers are divisible by 2 and 3 is.
4/25
4/35
4/55
4/1155
The probability that the 3 cards drawn from a pack of 2 cards are all red is.
1/17
3/19
2/19
2/17
If 5 coins are tossed simultaneously, then the probability that at least one head turning up is.
1/32
5/32
7/16
31/32
In a school of 50 students there are 35 girls and rest are boys, then the probability that a selected student will be a boy is
3/10
1/5
7/5
4/5
If A and B are two independent events, then the value of P(A/B) is.
P(A)
P(B)
A random variable has the following probability distribution.
then the value of P is.
-1/10
1/10
-1
5
In a non-leap year the probability of getting 53 Sundays or 53 Tuesdays or 53 Thursdays is
1/7
2/7
3/7
4/7
Three houses are available in a locality.Three persons apply for the houses.Each applies for one house without consulting the others.The probability that all the three apply for the same house is
1/9
2/9
7/9
8/9
