Two unbiased dice are thrown. Find the probability that six may be obtained as product
6/12
4/12
6/9
1/9
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)
A die is thrown twice. The probability that atleast one of the two items comes up with the number 3 is
5/12
11/36
1/12
7/24
A problem in mathematics is given to 3 students whose chances of solving individually are 1/2,1/3 and 1/4 .
The probability that the problem will be solved atleast by one is
1/4
1/24
23/24
3/4
If two dice are tossed ,the probability that the product of numbers thrown will be greater than 23 is
5/36
7/36
1/6
If A and B are two events in a sample space then
p(A∪B)≥p(A)+p(B)
p(A∪B)≤p(A)+p(B)
p(A∪B)=p(A)+p(B)
none of these
A normal die is rolled.The probability that the number on the uppermost face when it stops rolling will not be 5 is
2/6
3/6
5/6
What is the resulting samplespace if one coin is tossed
{H,H}
{T,T}
{H,T}
0
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
1
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