Question

The probability of getting an even no. when 2 dice are rolled simultaneously is ?

Answer 1

Answer :

We know probability P ( E ) = $\frac{Totalnumberofdesiredeventsn(E)}{Totalnumberofeventsn(S)}$

When two dices are drawn total number of events n ( S ) = { 1 , 2 , 3 , 4 , 5 , 6 , 1 , 2 , 3 , 4 , 5 , 6 } = 12
And
Even numbers on two dices = { 2 , 4 , 6 , 2 , 4 , 6 } = 6
So,
Probability of getting an even number = $\frac{6}{12}=\frac{\mathbf{1}}{\mathbf{2}}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{(}\mathbf{}\mathit{A}\mathit{n}\mathit{s}\mathbf{}\mathbf{)}$