Arithmetic Series
The sum of an arithmetic sequence. The sum of the first n terms of an arithmetic series is given by:

Geometric Series
The sum of a geometric sequence. The sum of the first n terms of a geometric series is given by:

Arithmetic Sequence
A sequence which has common different between any two successive terms. The general or nth term of an arithmetic sequence is given by:

Geometric Sequence
A sequence in which the ratios of consecutive terms are the same. The general or nth term of a geometric sequence is given by:

The geometric mean of a data set {a_1, a_2, …, a_n} is given by:

Permutation

Combinations

Normal Distribution
