Question

jeff has 8 red marbles, 6 blue marbles, and 4 green marbles that are the same size and shape. he puts the marbles into a bag, mixes the marbles, and randomly picks one marble. what is the probability that the marble will be blue?

Explanation:

Step1: Calculate total marbles

$8 + 6+4=18$

Step2: Calculate probability of blue marble

The number of blue marbles is 6. Probability = $\frac{\text{Number of favorable outcomes}}{\text{Total number of outcomes}}$, so the probability of picking a blue marble is $\frac{6}{18}=\frac{1}{3}$

Answer:

$\frac{1}{3}$