There are total 450 students who applied for room in a hostel. Let E1,E2 and E3 are the events that a Ist year, IInd year and IIIrd year students respectively applied for a room P(E1)=
200
450
=
4
9
P(E2)=
150
450
=
1
3
P(E3)=
100
450
=
2
9
Let A be the event that the studfents chance of getting a room P(