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
E and F are two events associated with a random experiment for which p(F)=0.35 ,p( E or F)=0.85 , p(Eand F)=0.15.Find p(E)
0.35
0.65
0.5
0.25
probability of an impossible event is
0
1
not defined
-1
If A and B are mutually exclusive events then p(A∪B)=
p(A).p(B)
p(A)+p(B)
None of these
What is the resulting samplespace if one coin is tossed
{H,H}
{T,T}
{H,T}
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
A die is rolled .If the outcome is an even number, what is the probability that it is a prime number
1/3
2/3
Two unbiased dice are thrown. Find the probability that six may be obtained as product
6/12
4/12
6/9
1/9
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
2/9
2/10
1/10
If
p(A)
1-p(A)
p(A)-1
1-(p(A))2
