During July 2005, the seven most-visited shopping websites (with number of visitors, in millions) were: eBay (61.7), Amazon (42.0), Wal-Mart (22.6), Shopping.com (22.4), Target (20.5), Apple Computer...

During July 2005, the seven most-visited shopping websites (with number of visitors, in millions) were: eBay (61.7), Amazon (42.0), Wal-Mart (22.6), Shopping.com (22.4), Target (20.5), Apple Computer (17.4), and Overstock.com (17.2). Considering these as a population, determine:

Source:

The World Almanac and Book of Facts 2006,

p. 390.

1. The mean, median, range, and midrange.


2. The mean absolute deviation.


3. The standard deviation and variance.