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.
- Image: Brian Gratwicke. Satellite view is showing Panama City, the national capital of Panama, located at the southern end of the Panama Canal at the Bay of Panama, part of the Gulf of Panama (North Pacific Ocean). The city was founded in 1519 by the Spanish.