2. Suppose the observed 6-month, 30-month and 54-month (discrete) time spots rate in a market are 1% p.a., 2% p.a. and 4% p.a. respectively. Suggest a robust mathematical method, with justification, for estimating the 1-year, 2-year, 3-year and 5-year (discrete) time spot rates in the market and carry out such estimation. (Note that there is no unique answer here!). 2. Suppose the observed 6-month, 30-month and 54-month (discrete) time spots rate in a market are 1% p.a., 2% p.a. and 4% p.a. respectively. Suggest a robust mathematical method, with justification, for estimating the 1-year, 2-year, 3-year and 5-year (discrete) time spot rates in the market and carry out such estimation. (Note that there is no unique answer here!)