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.
Calculating a Geometric Mean in Excel. To calculate a geometric mean in Excel, you can use the GEOMEAN function, which returns the average growth rate, with the effect of compounding. You can use GEOMEAN to calculate the geometric mean on up to 255 numbers, defined names, arrays, or cell references that contain numbers.