A: In a scientific experiment, a confounding variable is a secondary, changing condition that muddies the experimenter's hypothesized inference between cause and effect. Researchers must be meticulous about experiment design to control for confounding variables and to protect the integrity of their findings.
Fairfax County, officially the County of Fairfax, is a county in the Commonwealth of Virginia. As of the 2010 census, the population was 1,081,726, in 2014, the population was estimated to be 1,118,883, making it the most populous jurisdiction in the Commonwealth of Virginia, with 13.6% of Virginia's population.lexandria County was returned to Virginia in 1846, reduced in size by the secession of the independent city of Alexandria in 1870, and renamed Arlington County in 1920. The Fairfax County town of Falls Church became an independent city in 1948.
In Fairfax County, about 70 percent on average of the funding for Fairfax County Public Schools (FCPS) comes from the General Fund transfer from the County while about 16 percent comes from the Commonwealth of Virginia and only about two percent from the federal government.nlike the federal government which can incur a deficit to fund its dayâtoâday operations, state and local governments by law must operate within the parameters of a âbalancedâ budget, meaning that expenditures cannot exceed incoming tax revenue for the budget year.