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.
For the U.S. city of the same name, see Panama City, Florida. Panama City (Spanish: Ciudad de PanamÃ¡; pronounced: [sjuËÃ°a(Ã°) Ã°e panaËma]) is the capital and largest city of the Republic of Panama. It has an urban population of 430,299, and its population totals 880,691 when rural areas are included.