Comparing data sets Frequency table Data sets can be compared by looking at their similarities and differences. This can be done by first calculating an average and a measure of spread for reach.

A grouped frequency table is a way of presenting data in groups called classes close classA group created to contain a set of data. For example, the class 10 < 𝒙 < 20 contains values of 𝒙 ...

High-frequency trading could soon become as powerful a force in other asset classes as it already is in US equities, according to new research from consultancy TABB Group.