The averaging method is frequently used to bring the frequency (the number) of each product with a score of how much effect the levels together, and then divided by the.The number of all people would have to average.
The average usually by means of a frequency. (Number) of each class multiplied by the rate of the level it does not work together and divided by the total number of people it can mean as needed.
Means are often used to bring the frequency. (number) of each level you to score in that level of the combination of much divided by the number of people all will mean as needed.