Question

A letter is known to have come from either "TATANAGAR" or "CALCUTTA'' .On the envelope just two consecutive letters are visible. if the visible letters are TA, then the probability that the letter has come from TATANAGAR

Answer 1

Answer:

A letter is known to have come from either TATANAGAR or CALCUTTA. On the envelope, just two consecutive letters, TA are visible. ... P(A/E1) = Probability that the consecutive letters TA visible on the envelope belong to TATANAGAR.