Mathematics, statistic 150 (Equalprobabilitie)

Question

A pair of 6 sided dice are tossed. What is the probability that at least one of the dice has a value greater than or equal to 4?



Answer = 

Answer 1

there are 36 possibilities

qualifying events of interest:

4 x {1,2,3,4,5,6}

5 x {1,2,3,4,5,6}

6 x {1,2,3,4,5,6}

18/36 = 1/2