Albert has inherited money and wants to invest it. He considers three investment alternatives. The profit/loss made depends on the state of the economy. The following payoff table gives the profit/loss (in rands) that would be made during the next year for each of the investment alternatives: Investment alternatives Good economy Bad economy Stock market 80 000 20 000 Bonds 30 000 20 000 Fixed deposit 23 000 23 000 Probability 0,5 0,5 4.1 Which decision criterion will Albert use if he is pessimistic? (1) 4.2 Which investment alternative will Albert choose if he is optimistic? (2) 4.3 Suppose Albert chooses to invest his money in fixed deposits. Which decision approach did Albert use? (1) 4.4 Which investment alternative will Albert choose if he uses the minimax regret decision criterion