The correlation coefficient, denoted by r, is a measure of the strength of the straight-line or linear relationship between two variables. The correlation coefficient takes on values ranging between +1 and -1. The following points are the accepted guidelines for interpreting the correlation coefficient: 1  0 indicates no linear relationship. + 2 1 indicates a perfect positive linear relationship: as one variable increases in its values, the other variable also increases in its values via an exact linear rule.
eBay Inc. is an American multinational corporation and e-commerce company, providing consumer to consumer & business to consumer sales services via Internet. It is headquartered in San Jose, California. eBay was founded by Pierre Omidyar in 1995, and became a notable success story of the dot-com bubble.
AuctionWeb was founded in California, on September 4, 1995, by French-born Iranian-American computer programmer Pierre Omidyar (born June 21, 1967) as part of a larger personal site. One of the first items sold on AuctionWeb was a broken laser pointer for $14.83.s of November 2012, the U.S.-based eBay.com charges $ 0.10 to $2, based on the opening or reserve price, as an insertion fee for a basic auction-style listing without any adornments. The Final Value Fee amounts to 10% of the total amount of the sale, which is the price of the item plus shipping charges.