Variation defines how much changes are happening in an output of a process.
There are 4 ways of measuring variations
Mean - variations are measured and compared by using mathematics averaging technique.
Median - It is a mid point in a range of data.It is calculated by finding the difference between highest and lowest vale n then division by two and finally add the lowest value to it.
Mode- it is the most time of occurred values in a data range.
Range - variations are measured as difference between highest and lowest values in particular data range.
There are 4 ways of measuring variations
