a marble is randomly selected from a bag containing 3 red marbles, 3 blue marbles, and 3 green marbles. what…
a marble is randomly selected from a bag containing 3 red marbles, 3 blue marbles, and 3 green marbles. what is the probability that the selected marble is green?
Answer
Answer:
$\frac{1}{3}$
Explanation:
Step1: Calculate total marbles
$3 + 3+3=9$
Step2: Calculate probability of green
$\frac{\text{Number of green marbles}}{\text{Total number of marbles}}=\frac{3}{9}=\frac{1}{3}$