Question

In a bag there are 5 red marbles, 2 green, 4 yellow and 3 blue. Once a marble is drawn it is not replaced. What is the probability of choosing a red and then a yellow marble?

Answer 1

Question #9940

In a bag there are 5 red marbles, 2 green, 4 yellow and 3 blue. Once a marble is drawn it is not replaced. What is the probability of choosing a red and then a yellow marble?

**Solution.** The probability equals (of course, we assume that all decisions are equally likely and independent)

$$\frac{5}{14} \cdot \frac{4}{13} = \frac{10}{91} \approx 0.11$$

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