A die is thrown twice and the sum of the numbers appearing is observed to be 6. find the conditional probability that the number 4 has appeared at least once?

A die is thrown twice and the sum of the numbers appearing is obser

1.	A die is thrown twice and the sum of the numbers appearing is observed to be 6. find the conditional probability that the number 4 has appeared at least once?
A.	1/5
B.	3/5
C.	2/5
D.	None of these
Answer» D. None of these

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A die is thrown twice and the sum of the numbers appearing is observed to be 6. find the conditional probability that the number 4 has appeared at least once?

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