Overall, the mean household income in the United States, according to the US Census Bureau 2014 Annual Social and Economic Supplement, was $72,641, or $20,702 (39.86%) higher than the median household income ($51,939).ne key measure is the real median level, meaning half of households have income above that level and half below, adjusted for inflation. According to the Federal Reserve, this measure was $51,939 in 2013, below the 1999 peak of around $57,000.
DEFINITION of 'Geometric Mean'. The average of a set of products, the calculation of which is commonly used to determine the performance results of an investment or portfolio. Technically defined as the 'n'th root product of 'n' numbers, the formula for calculating geometric mean is most easily written as:
geometric. adj. 1. (Mathematics) of, relating to, or following the methods and principles of geometry. 2. (Mathematics) consisting of, formed by, or characterized by points, lines, curves, or surfaces: a geometric figure.eometric-characterized by simple geometric forms in design and decoration; a buffalo hide painted with red and black geometric designs. geometrical. beaux arts, fine arts-the study and creation of visual works of art.