Question: # 3. Write the code that calculates volatility using the values stored in # the column 'Close_float' in 'df'. Volatility is calculated by # the

$\# 3. Write the code that calculates "volatility" using the values$

\# 3. Write the code that calculates "volatility" using the values stored in \# the column 'Close_float' in 'df'. "Volatility" is calculated by \# the standard deviation of log returns multiplied by sqrt(252);252 is \# the number of trading days per year. Assign the calculated volatility \# value into the variable vol. [10 pts]

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