1.3. Estimate (albeit very crudely) the stock drift and stock volatility of the price of silver

(US$/ounce) from the data in Table 1.2.

Table 1.2. Annual closing prices of silver (US$/ounce).
Year Close 2000 $4.595 2001 $4.650 2002 $4.790 2003 $5.960 2004 $6.845 2005 $8.910 Table 1.3. Annual closing value of the Japanese Nikkei Index (yen).
Year Close 1992 16925.0000 1993 17417.1992 1994 19723.0996 1995 19868.1992 1996 19361.3008 1997 15258.7002 1998 13842.1699 1999 18934.3398 2000 13785.6904 2001 10542.6201 2002 8578.9502 2003 10676.6396 2004 11488.7598 2005 16111.4297 2006 17225.8300