You must consider both consequences, the positive and the negative. Then you must think of a way that you will have a win-win situation or just do the compromising to be able to solve the problem and have a faster solving process.
Mutual Funds are simply a way to pool money together and buy more stocks. You invest into a mutual fund along with many other people. Then your pooled money is invested by the manager of the mutual fund. They are generally conisdered safe as they are run by "stock gurus".
