A single letter is selected at random from the word PROBABILITY .The probability that it is a vowel is
4/11
7/11
3/11
none of these
If two coins are tossed once. What is the probability of getting atleast one head?
1/4
2/4
3/4
1
A bag contains 20 coloured balls.8 are red,6 are blue,3 are green,2 are white and 1 is brown.A ball is chosen at random from the bag.What is the probability that the ball chosen is blue or red?
6/20
8/20
14/20
Suppose an outcome A occurs m times out of n equally likely outcomes in an experiment.Then odds in favour of A =
n/m
m/n
(n-m)/m
m/(n-m)
Nine playing cards are numbered 2 to 10 .A card is selected from them at random. probability that the card will be a multiple of 4 is
1/9
2/9
2/10
1/10
The probability of getting either 1 or 2 when a die is thrown is
1/2
1/6
1/3
A bag contains 10 white and 20 red balls. The probability that a ball drawn at random is white equals
1/5
What is the probability that there are 53 Sundays in a leap year ?
1/7
2/7
3/7
4/7
Two unbiased dice are thrown. Find the probability that six may be obtained as product
6/12
4/12
6/9
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
