You have a bag of 12 marbles. six of the marbles are blue, two are green, three are yellow, and one is red. if you reach into the bag and grab one marble, what is the probability that it will be blue?

The probability that it will be blue is

Solution:

Given that,

Total marbles = 12

Blue marbles = 6

Green marbles = 2

Yellow marbles = 3

Red marble = 1

We have to find out what is the probability that the marble grabbed from the bag is blue.

Since there are total 12 marbles, so there 12 possible outcomes.  

Since the number of blue marbles is 6, therefore the grabbed marble is blue has 6 possible outcomes.

Thus the probability that the grabbed marble is blue is given by