Question

there are 9 red and 6 green marbles in a bag. a child reaches in the bag and randomly takes one marble. what is the probability of that child getting a green marble? a. .66 b. .40 c. .33 d. .10

Explanation:

Step1: Calculate total number of marbles

Total marbles = 9 (red) + 6 (green)=15

Step2: Calculate probability of getting a green marble

Probability = $\frac{\text{Number of green marbles}}{\text{Total number of marbles}}=\frac{6}{15} = 0.4$

Answer:

B. 40