Permutation Formula (order matters)
Combination Formula (order doesn't matter)
list of all possible outcomes for a given situation
Events that cannot occur at the same time
Two events that can happen at the same time.
Used in determining the different arrangements of objects. For example: How many ways can you arrange 4 desks? 4! which means 4 x 3 x 2 x 1 = 24 ways
The likelihood that an event will occur. The probability that an event will occur is 0, 1, or somewhere between 0 and 1.
the average, obtained by adding the scores and then dividing by the number of scores
The number that occurs most often in a set of data
The middle number in a set of numbers that are listed in order