Formula of Mean: Know to How to ... The single numerical value calculated via Mean formula represents the average or typical value in the dataset which is a key descriptive statistic.

The normal distribution formula is based on two simple parameters—mean and standard deviation—that quantify the characteristics of a given dataset.

Thus, 68% of the 9 individuals were 75 inches tall plus or minus 9.3 inches (one standard deviation away from the mean), 95% were 75 inches plus or minus 18.6 inches (two standard deviations away ...