$\backslash ($ a $\backslash ).$ What is the arithmetic mean for each asset class $($stocks and real estate$)?$

$\backslash ($ b $\backslash ).$ What is the standard deviation of each asset class? Use the population standard deviation.

$\backslash ($ c $\backslash ).$ What is the correlation between the stocks and real estate?

d$.$ What would the return be for a portfolio of $50$ percent stocks and $50$ percent real estate?

$\backslash ($ e $\backslash ).$ What would the standard deviation be for a portfolio of $50$ percent stocks and $50$ percent real estate?

$\backslash ($ f $\backslash ).$ Using weights for stocks and real estate ranging from $100$ percent real estate to $100$ percent stocks in increments of $10$ percent, calculate the portfolio return and standard deviation for each weight increment and plot the results on a graph with the portfolio return on the vertical axis and the standard deviation on the horizontal axis.