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A dice is thrown twice and the sum of th...

A dice 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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KUMAR PRAKASHAN-PROBABILITY-Textbook Illustrations for Practice Work
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  8. An unbiased die is thrown twice. Let the event A be 'odd number on the...

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  9. Three coins are tossed simultaneously. Consider the event E 'three hea...

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  10. Prove that if E and F are independent events, then so are the events ...

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