1.

A die is thrown twice. What is the prohability that () 5 will not come up either time (i) 5 will comeup at least once?

Answer»

dice will thrown twice so total 36 ppsaibilitynow probability of 5 will not comeso we have to eliminate (5,1),(5,2),(5,3),(5,4),(5,5),(5,6),(1,5),(2,5),(3,5),(4,5),(6,5)so probability=25/36now 5 at least 1 time so probability=11/36



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