Equation

• Probability 1 Event Occurs = Number of desired events / Total number of possible events

Tips

• Always look for the word "or“, or the phrase "what is the probability of x happening“.

• When events are removed from a selection, always check to see if they are “replaced”.

• A probability can be a fraction, decimal, or a percent. If it’s a fraction, it can be reduced.

EXAMPLE

Probability = 2/8 or 1/4 or 25% or 0.25