True or False and Why?

1) Definitions of efficient market hypothesis and efficient capital markets are straightforward.Therefore, we can easily test whether the US stock market is efficient or not with the historical

financial data.

2) Investors can greatly reduce risk by putting their money into many different investments.Therefore, similarly, by investing for many years, investors can also diversify the risk they

face during any particular year.

3) Since Bitcoin does not pay any dividends to its investors, we can never use dividend discount model to determine Bitcoins fair value.

4) If a stocks beta is 1.3, it means that this stocks volatility should be 30% higher than the market portfolio.