you work as a trader for a financial institution and manage a portfolio of stocks whose rates of return follow a normal distribution with expected rate of return of 6.70% and volatility of 14.50% on an annual base of 250 trading days. for the purpose of market risk measurement, you set the confidence level at 98%. The current value of your portfolio is $680,000.

a) what is the weekly (over 5 trading days) expected rate of return?

b) what is the weekly (over 5 trading days) volatility of your portfolio?