10 points Using the weekly closing stock price (S) data in the table below, find the stock price volatility per annum in decimal format (not in %). For calculating returns, use the LN(S/ 51-1) approach Enter your answer rounded to four decimal places. For example. If your calculation results in 0.1234567, you only need to enter 0.1234 Week Si (in $) 1 2 3 4 5 6 30.2 32 31.1 30.1 30.2 30,3 30.6 33 32.9 33 33.5 7 8 9 10 11 12 13 33.5 33.7 33.5 33.5 15 Type your