Q. 244.5( 159 Votes )

A die is thrown t

Answer :

Total number of outcomes = 6 × 6

= 36


(i)Total number of outcomes when 5 comes up on either time are (5, 1), (5, 2), (5, 3), (5, 4), (5, 5), (5, 6), (1, 5), (2, 5),


(3, 5), (4, 5), (6, 5)


Therefore, the total number of favourable cases = 11


P (5 will come up either time) =


P (5 will not come up either time) = 1 -


=


(ii)Total number of cases, where 5 comes at least once = 11


P (5 will come at least once) =


=

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