İSTATİSTİK I

Remember on a six-sided fair die, all the outcomes have the same chance to appear, in this example the question makes a restriction of observing values less than 3. There are only two outcomes to satisfy this restriction; those are the numbers 1, and 2; therefore, the probability we are looking for is 

P(less than 3) = 2/6 = 1/3 = 0.333