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.
Bay County, Florida. Bay County is a county in the U.S. state of Florida. As of the 2010 census, the population was 168,852. Its county seat is Panama City. Bay County is included in the Panama City, Florida Metropolitan Statistical Area. The county is best known for its white sand beaches and emerald green water, where large pods of dolphins swim year-round.