There are 100 balls in a container. 30 of them are red, 50 blue, and 20 green. What is the probability that a randomly selected ball is green?

Question

Write your answer as a decimal.

Answer 1

To find the probability that a randomly selected ball is green, you can use the formula:

\[ \text{Probability} = \frac{\text{Number of favorable outcomes}}{\text{Total number of outcomes}} \]

In this case, the number of green balls (favorable outcomes) is 20, and the total number of balls is 100.

So the probability \( P \) that a randomly selected ball is green is:

\[ P(\text{green}) = \frac{20}{100} = 0.2 \]

Thus, the probability that a randomly selected ball is green is 0.2.