In a bag there are 7 red marbles, 4 blue marbles, and 6 green marbles. What is the
probability of choosing a blue marble out of the bag?
To find the probability of choosing a blue marble out of the bag, we need to divide the number of blue marbles by the total number of marbles in the bag.
There are 7 red marbles, 4 blue marbles, and 6 green marbles, so the total number of marbles is 7 + 4 + 6 = 17.
The probability of choosing a blue marble is therefore 4/17.