Is a stock mutual funds past performance necessarily an indicator of future performance? What type of risk

Question:

Is a stock mutual fund’s past performance necessarily an indicator of future performance? What type of risk affects all stock mutual funds? Describe the tradeoff between the and risk of stock funds.
Expected Return
The expected return is the profit or loss an investor anticipates on an investment that has known or anticipated rates of return (RoR). It is calculated by multiplying potential outcomes by the chances of them occurring and then totaling these...