Peter rolls two dice at the same time. What is the probability that he will not roll a double?	Choose the correct choice from the following options:  A) a) 1/12  B) b) 1/36  C) c) 1/6  D) d) 1/6  E) e) 5/6
We can have 6 different outcomes on a dice.   Total outcomes on two dices = 6*6   We need only the cases when Peter rolls a double, that means only the outcomes in which the numbers on both the dices are same   They can be {1, 1}, {2, 2}, {3, 3}, {4, 4}, {5, 5}, {6, 6}.   A total of 6 outcomes   Number of outcomes where he will not roll a double = 36-6= 
<gadget id="calculator">36-6</gadget>
<output>30</output>
30   Probability= favorable outcomes/ total outcomes = 30/36 = 5/6.   Option e) 5/6
<result>E</result>
Peter rolls two dice at the same time. What is the probability that he will not roll a double?