A die is thrown two times and the sum of the scores appearing on the die is observed to be a multiple of . Then the conditional probability that the score has appeared at least once is
Explanation for the correct option:
Step1. Define events
Total outcomes
Total number of outcomes
Sum obtained is multiple of
The score appeared at least once
Step2. Calculate the probability of
Step3. Calculate the
Substitute the required value in the formula
Hence, Option(D) is the correct answer.