North Korea was formed after Japan relinquished its 35-year occupation of the Korean Peninsula at the end of World War II.
Within the zoning code are required minimum setbacks. A variance is a waiver of a setback requirement or height restriction in the code. It allows the owner to build closer to the property line than the code allows. For example, in an R-1 single family single and duplex zoning district, the minimum setback requirement for the rear is 10 feet on each side.
It shows how precise your data is. The standard deviation is the square root of its variance. A low standard deviation indicates that the data points tend to be very close to the mean, whereas high standard deviation indicates that the data are spread out over a large range of values.