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 10 white and 20 red balls. The probability that a ball drawn at random is white equals
1/3
1/2
1/5
If A and B are mutually exclusive events then p(A∪B)=
p(A).p(B)
0
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
1/6
2/6
3/6
5/6
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
What is the probability of getting a head while tossing a coin
2
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)
What is the probability that there are 53 Sundays in a leap year ?
1/7
2/7
3/7
4/7
What is the resulting samplespace if one coin is tossed
{H,H}
{T,T}
{H,T}
If A and B are two events such that p(A)=1/4 ,p(B)=1/2 and p(A and B)=1/8 .Then p(notA and notB) is
1/8
3/8
5/8
7/8
