Outcome - the result
A B C E D
P(Vowels) - 2/5 or 0.4
P(Constant) - 3/5 or 0.6
How to Determine Probability
To get probability, simply take the event(s), and divide them by the total possible outcomes.
Find the probability of drawing a black shirt out of 3 black shirts and 7 white shirts.
3/10 or 0.3
Solve the probability for getting Black on both hexagons.