A firm's stock returns for the past four year were 18%, 16, 10.5% and 6.5%. Given this information, calculate the standard deviation of the reutrns

10.46%

9.46

8.46

5.24%

5.59

"""an invest ment or portfolio with a beta of 1 suggest is (highly correlated/not correlated/negatively correlated) with market returns

Or

That the investment or portfolio beta equals the risk free rate """

The security market line, within the first quadrant of a graph, begins at which point?

Asset of portfolio required return=?

Beta=?

The risk free rate?