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.
Definition. A measure of central tendency calculated by multiplying a series of numbers and taking the nth root of the product, where n is the number of items in the series. The geometric mean is often used when finding an average for numbers presented as percentages. â We had to figure out the geometric mean, which would be pretty had because we did not know how to determine it.