Learn what an arithmetic sequence is and about number patterns in arithmetic sequences with this BBC Bitesize Maths ... For example, 3, 5, 7, 9… is a sequence starting with 3 and increasing by 2 ...

Example of the Arithmetic vs. Geometric Mean Let's say that a stock's returns over the last five years are 20%, 6%, -10%, -1%, and 6%. The arithmetic mean would add those up and divide by five ...