Is it B?
Yes, it's b. I got it. Thanks for replying
The line is a diameter of the circle and there will be equal no. of points above the line on the circle as below it. So, it should be 0.5.
Oh! Yeah. Missed it badly
Is the answer A,B?
How? The minimum value of intersection of any two events can be 0 & there is no further info about the events.