Q16 of 105 Page 538

If P (A) = 1/2, P(B) = 0, then P (A|B) is

We know that


By definition of conditional probability,


……….(i)


Given:


And P(B) = 0


⇒ Using (i), we have


, which is not defined.

More from this chapter

All 105 →
14

Given that the two numbers appearing on throwing two dice are different. Find the probability of the event ‘the sum of numbers on the dice is 4’.

 15

Consider the experiment of throwing a die, if a multiple of 3 comes up, throw the die again and if any other number comes, toss a coin. Find the conditional probability of the event ‘the coin shows a tail’, given that ‘at least one die shows a 3’.

 17

If A and B are events such that P(A|B) = P(B|A), then

 1

If P(A) = 3/5 and P (B) = 1/5, find P (A ∩ B) if A and B are independent events.