Investing in a dead coin is the greatest mistake every investor could ever make. I for instance will never throw my money into a coin with low volume on exchanges because the possibility that such coin will soon wash out from the surface of the market is high
Actually the market is unpredictable so no one can say which coin is good for investment purposes, 75% it depends on your luck and 25% on your market research or survey. Invest only in top 20 coins and nowadays bitcoin is the best option for investment.
I think you are a little mistaken in the calculations. 80 percent of success in this market depends on how well you analyzed the tools in which you want to invest in and 20 percent of your luck