Answer:
6.50 ± 1% ; 6.67 ± 1% ; 7.50 ± 1%
Step-by-step explanation:
The computation is shown below:
Expected Return 2 year security
= (T-bill at beginning of year 1 + T-bill at beginning of year 2) ÷ number of years
= (5% + 8%) ÷ 2
= 6.50 ± 1%
Expected Return 3 year security
= (T-bill at beginning of year 1 + T-bill at beginning of year 2 + T-bill at beginning of year 3) ÷ number of years
= (5% + 8% + 7%) ÷ 3
= 6.67 ± 1%
Expected Return 4 year security
= (T-bill at beginning of year 1 + T-bill at beginning of year 2 + T-bill at beginning of year 3 + + T-bill at beginning of year 4) ÷ number of years
= (5% + 8% + 7% + 10%) ÷ 4
= 7.50 ± 1%