Suppose that we roll two fair 6-sided dice. What is the probability that the two numbers rolled sum to 4?

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Answer 1 · 2018-06-26T19:09:22

#1/12#

Favorable outcomes/results to get a sum of #4# when fair dices are tossed are

#(1, 3), (2, 2), (3, 1)#

While, the total outcomes of two fair dices #=6\times6=36#

hence, the probability to get a sum of 4

#=\frac{\text{favorable outcomes}}{\text{total outcomes}}#

#=\frac{3}{36}#

#=1/12#