Question

In a bag of marbles, you have three green, two yellow, six blue, and nine red marbles. What is the probability of picking a blue marble from the bag?

Answer 1

I had problems like these how I figure them out is

I add all the marble i have So 3 green marbles + 2 yellow marbles + 6 Blue marbles + 9 red marbles = 20 marble altogether

The probability of picking a blue marble out the bag is
`(6)/(20)`

Because there is 20 marble and 20 of those marbles are blue

Just like the probability of picking a red marble is
`(9)/(20)`

The probability of picking a green marble is
`(3)/(20)`

And the probability of picking a yellow marble is
`(2)/(20)`

So your answer for the probability of picking a blue marble from the bag is
`(6)/(20)`

Answer 2

I think the answer would be 6/20=3/10