Q. 94.0( 4 Votes )

A die is thrown t

Answer :


A die thrown twice will have a total outcome of 62=36.


Let P(A) be the probability of getting the number 5 at least once.


Let P(B) be the probability of getting sum = 8.


The sample space of B = {(2,6),(3,5),(4,4),(5,3),(6,2)}



Let be the probability of getting the number 5 at least once and the sum equal to 8


The sample space of



Tip – By conditional probability, where is the probability of occurrence of the event A given that B has already occurred.


The probability that the number 5 have appeared at least once given that the sum = 8:






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