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1. [1 point] Estimate the standard deviation of the change in the stock price in one month for a stock priced at $435. The stock's annual volatility is 30.75%. 2. [2 points] What is the price of a three-month European put option on a non- dividend-paying stock with a strike price of $75 when the current stock price is $84. The risk-free interest rate is 10% and the volatility is 19%