The variance of a constant is zero. Adding a constant value, c, to a random variable does not change the variance, because the expectation (mean) increases by the same amount. Multiplying a random variable by a constant increases the variance by the square of the constant.
Panama City is a city and the county seat of Bay County, Florida, United States. Located along U.S. Route 98, it is the largest city between Tallahassee and Pensacola.
2. also Panama City The capital and largest city of Panama, in the central part of the country on the Gulf of Panama. The original city was founded in 1519, destroyed in 1671, and rebuilt a short distance away in 1673.