The arithmetic mean is the sum of the observed values, or the values of the samples from all of the value of exploration data, divided by the number of data samples.
The arithmetic mean is the sum of the value or the value of the sample derived from a survey of all the information. Then divide by the number of data samples.
Arithmetic mean is the sum of the observations or the value of the samples from a survey of all the information. Divided by the number of samples of data.