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.
Panama City, Spanish PanamÃ¡ or Ciudad de PanamÃ¡, capital of the Republic of Panama. It is located in the east-central part of the country near the Pacific Ocean terminus of the Panama Canal, on the Gulf of Panama. Area city, 38.5 square miles (100 square km). Pop.