Question

find the probability of selecting a 3 or 4 when a single die is rolled once. a 1/6 b 1/3 c 2/3 d 3/2

Explanation:

Step1: Determine total outcomes

A die has 6 faces. So total number of outcomes \( n(S)=6 \).

Step2: Determine favorable outcomes

Favorable outcomes (getting a 3 or 4) \( n(E)=2 \).

Step3: Apply probability formula

Probability \( P(E)=\frac{n(E)}{n(S)}=\frac{2}{6}=\frac{1}{3} \).

Answer:

B. \( 1/3 \)