Question

If you roll a standard six-sided die, what is the probability that you get a 1 or 5? Give your answer as a simplified fraction.

Answer 1

Step 1: Theorem

$\text{Probability of an event = }\frac{N\text{umber of required outcome}}{N\text{umber of sample space}}$

Step 2: Given data

Sample space = { 1, 2, 3, 4, 5, 6}

Number of sample space = 6

Event space = {1, 5}

Number of event space = 2

Step 3: Substitute to find the probability that you get 1 or 5

$\begin{gathered} \text{Probability that you get 1 or 5 = }\frac{2}{6} \\ =\text{ }\frac{1}{3} \end{gathered}$