The simple definition of a mean is that of a numeric quantity which represents the center of a collection of numbers. Here the trick lies in defining the exact type of numeric collection, as beyond ...

1 3, 2 3, 3 3, 4 3, 2. Arithmetic Progression (AP): It is a list of numbers in which each term is obtained by adding a fixed number to the preceding term except the first term. 3. Common difference (d ...