Please dont use excel write formulas cause i need to only use a calculator

1. Use the following table of states of economy and stock returns to answer the following \begin{tabular}{|c|c|c|c|c|c|} \hline & & & \multicolumn{3}{|c|}{ Security Returns if state occurs } \\ \hline State of Economy & & Probability of State of economy & & A & B \\ \hline & & & & & \\ \hline Recession & & 0.25 & & 8% & 8% \\ \hline Average & & 0.50 & & 13% & 7% \\ \hline Prosperity & & 0.25 & & 23% & 15% \\ \hline \end{tabular} A) Calculate the expected return for A \& B B) Calculate the standard deviation for A \& B C) Calculate the expected return on a portfolio of 50% security A \& 50% security B D) Calculate the standard deviation for A \& B