Question

A bag contains 8 blue marbles, 11 green marbles, and 7 red marbles. Which is the probability of drawing a green marble from the bag?

A. 11%

B. 42.3%

C. 26.9%

Answer 1

B. 42.3%

Explanation:

You first add all of the marbles together to know how many marbles are in the bag. When adding 8+11+7 you get 26, then you add it to the formula:

# of outcomes that satisfy the requirement/ total # of possible outcomes

you plug in 11 in the numerator (since it is the # of outcomes that satisfy the requirement), and 26 in the denominator (since it is the total # of possible outcomes)

11/26 = 0.423076923 = 0.423 = 42.3%

hope this helps!

Answer 2

42.3%

Explanation:

The total number of marbles is

8+11+7 = 26

The probability of getting a green marble is

P(green) = green/total = 11/26

=.423076923

= 42.31%