a bond is currently priced at its par value of $100000 and its yield to maturity is 7%, the bond's prices with various yields are given in the table:
yield	6%	6.9%	7%	7.1%	8%
price	111469.92	101067.69	100000.00	98948.78	90181.85
i. estimate the current duration and convexity
ii. What is your best estimate of the bond's price if the yield were 4%?
iii. What is your best estimate of the bond's price if the yield were 10%?
iv. Which estimate do you think is more accurate: your estimate in ii. Or iii.?