A die is thrown twice and the sum of the...

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

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The correct Answer is:

`(2)/(5)`

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

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