Current Sherman County, Texas Population, Demographics and stats in 2016, 2015.
Mean female height: 64 in. Standard deviation: 2.8. Out of 100 million adult females in the US, less than 5 million of them are taller than 68.2 inches, or 5 8.2. Out of 100 million adult males, less than 5 million are shorter than 66 inches, or 5 .
Standard deviation 1 Standard deviation Standard deviation is a widely used measure of variability or diversity used in statistics and probability theory. It shows how much variation or dispersion exists from the average (mean, or expected value).or the normal distribution, this accounts for 68.27 percent of the set; while two standard deviations from the mean (medium and dark blue) account for 95.45 percent; three standard deviations (light, medium, and dark blue) account for 99.73 percent; and four standard deviations account for 99.994 percent.