(Ahmad is considering to buy one of two laptops HH and DEPP. Both laptops could benefit over an 8 years period and each requires an initial investment of RM4,750 for HH and RM4,600 for DEPP. Details of estimates of rates of return and probabilities for optimistic, most likely and pessimistic provided): Laptop HH Kebarangkalian (Probability) 1.00 Jumlah (Amount) RM 4,750 Laptop DEPP kebarangkalian Jumlah (Probability) (Amount) 1.00 RM 4600 0.40 45% 0.40 Pelaburan awal (Initial Investment) Kadar pulangan tahunan (Rate of return annual) uptimistik Optimistic) Berkemungkinan (Most likely) Pesimis (Pessimistic) 35% 0.30 30% 0.35 30% 0.30 15% 0.25 25% a) Kirakan julat untuk kadar pulangan komputer riba HH & DEPP. (Calculate the range for the rate of return for laptops HH & DEPP.) (2 markah/ marks) b) Kirakan jangkaan nilai pulangan untuk komputer riba HH & DEPP. (Calculate the expected value of return for laptops HH & DEPP.) (10 markah/ marks) c) Laptop yang manakah lebih berisiko untuk dibeli? Terangkan (Which of the laptop is riskier to buy? Explain.) (2 markah/ marks)