Question

There are several marbles in a bag: two red, four green, one blue, and five yellow. What is the probability of randomly drawing a green marble, replacing it, and then randomly drawing a yellow marble?

Answer 1

The probability is 5/36

Explanation:

The total number of marbles is 2 + 4 + 1 + 5 = 12 marbles

The probability of randomly drawing a green marble would be

number of green marble/total number of marbles = 4/12 = 1/3

Now since we are replacing the total number of marbles stays the same

so, the probability of drawing a yellow marble now will be ;

number of yellow marbles/total number of marbles = 5/12

So the total probability we are having here would be; 1/3 * 5/12 = 5/36