Investing in equal amounts of these three dividend stocks will produce an average yield of 3.5%.The stock market is full of noise, but over the long term, some of the best investments are made by choosing a quality company and holding it over several years, if not decades.For example, Warren Buffett-led Berkshire Hathaway acquired most of its Coca-Cola and American Express holdings over 30 years ago. Both investments have compounded greatly, each providing hundreds of millions of dollars in dividend income ...