jueves, 1 de mayo de 2014

Measures of Central Tendency


Mean

 Also known as average; mean is equal to the sum of all the values in a data set divided by the number of values.

Median

To find mode, first we arrange our set of date from smaller to greater.  The median marks the middle mark, the value that in the exact middle.  If you have an odd set of data, just take the two middle values and average them.

Mode

Mode is used for when we want to know the most common category in a chart or data set.