Date	Close
1/1/2010	92.92
1/4/2010	92.495
1/5/2010	91.585
1/6/2010	92.356
1/7/2010	93.39
1/8/2010	92.66
1/11/2010	92.092
1/12/2010	91.08

3. If one then calculates the volatility of the rates of changes over five trading days (ie, rate of changes between day 1 and 6, day 6 and 11, and so on), the result is < >percent (round up/down the fifth decimal place). When one compare this with the result of Question 1 multiplied by the square root of < 63.625 >,which is < >percent (round up/down the fifth decimal place), they are almost identical, underscoring the rule that volatility increases by the square root of time.

Date	Close
12/31/2009	92.91
12/31/2019	108.873

1. If one calculates the daily rates of changes during the period from January 1, 2010 to December 31, 2019, and the volatility (standard deviation) of the rates of changes, the volatility equals

< >percent (round the third decimal place, ie X.XX).