During the 1980s,Pepsi-Colaran a series of television advertisements showing people participating in taste tests demonstrating that, according to the commercials, "fifty percent of the participants who said they preferred Cokeactuallychose the Pepsi." Statisticians pointed out the problematic nature of a 50/50 result: most likely, the taste tests showed that in blind tests, most people cannot tell the difference between Pepsi and Coke. Coca-Cola ran ads to combat Pepsi's ads in an incident sometimes referred to as thecola wars; one of Coke's ads compared the so-calledPepsi challengeto twochimpanzeesdeciding whichtennis ballwas furrier. Thereafter, Coca-Cola regained its leadership in the market.
