Probability is defined as the ratio of the successful
events over total events. In this case an event is described as the color of
block.
The total number of blocks present in the bag is:
total blocks = 36 + 48 + 22 + 19
total blocks = 125
So calculating for each theoretical probability:
P (green) = 48 / 125 = 0.384
P (not yellow) = P (red or green or purple)
P (not yellow) = (125 – 22) / 125 = 0.824
P (yellow or not green) = P (yellow or red or purple)
P (yellow or not green) = (125 – 48) / 125 = 0.616
