The Louvre Museum as seen through the Louvre Pyramid glass in Paris, France. Smithsonian Institution, Washington, D.C. The Smithsonian is the worldâs largest research and museum complex, with 19 museums and galleries, the National Zoological Park, and various research stations.
Geometric Mean. The Geometric Mean is a special type of average where we multiply the numbers together and then take a square root (for two numbers), cube root (for three numbers) etc. First we multiply them: 2 Ã 18 = 36. Then (as there are two numbers) take the square root: â36 = 6.
The arithmetic mean is a value that is derived by dividing the total of a set of values by the number of items in the set.The geometric mean is a value between the first and last of a set of values organized in a geometric progression. Compare median, mode. Statistics.ean deviation. the average value of a set of absolute deviations from the mean of a set of observations. mean electrical axis (MEA). in electrocardiography, a calculation based on the relative amplitude of Q, R and S waves in the three bipolar limb leads.