There are many examples of normal distribution. One example with a large spread in data is height. There is a large distribution height. Most people fall within one deviation of the average. For men, the average height is 70 inches (5 foot 10 inches) with a standard deviation of 4 inches. So 34% of men are between 5'6" and 5'10" and 34% are between 5'10" and 6'2". 13.5% are between 5'2" and 5'6," and the same percentage are between 6'2" and 6'6". The remaining 5% are either above 6'6" or below 5'2". These outlying groups show considerable deviation with Little People with heights between 1 foot and 4'10" and giants with heights up to 8'6".

Birthweight shows normal distribution with a small amount of deviation. This is in part due to the small size of newborns and in part due to the medical complications of very low birth weights for the baby and very high birth weights for both mother and baby.

The average birth weight is about 7 lbs 5 oz with a standard deviation of 1 lb 3 oz. Thus, 68% of newborns weigh between 6 lbs 2 oz and 8 lbs 8 oz. 95% weigh between 4 lbs 11 oz and 9 lbs 11 oz. Premature babies can weigh as little as 1 lb and survive, though the odds are worse the lower the weight. Larger babies are rarely delivered, because doctors will frequently intervene before a dangerous size is reached.