A box contains 4 white pens and 2 black pens. Another box contains 3 white pens and 5 black pens. If one pen is selected from each box, then the probability that both the pens are white, is
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 the value of
1.2
1.4
0.8
0.4
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
If the probability of A to fail in an examination is 0.2 and that for B is 0.3, then probability that either A or B is fail, is
0.5
0.44
0.25
While in the calculation of GNP Horse gambling income should be
A bag contains 5 white, 7 black and 4 red balls. Three balls are drawn from the bag at random, then the probability that all the three balls are white, is
Out of 40 consecutive natural numbers, two are chosen at random, then the probability that the sum of these numbers is odd, is
In a box, there are 2 red, 3 black and 4 white balls. Out of these, three balls are drawn together, then the probability of the balls drawn are of the same color is
The probability of choosing at random a number that is divisible by 6 or 8 from among 1 to 90 is
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)
