Suppose that the price of stock X at close of trading yesterday was $100 and its volatility was estimated as 2% per day. The price of X at the close of trading today is $96. Suppose further that the price of Asset Y at the close of trading yesterday was $50, its volatility was estimated as 1.5% per day, and its correlation with X was estimated as 0.5. The price of Y at the close of trading today is unchanged. Update the volatility of X and Y and the correlation between X and Y using The EWMA model with = 0.94. The GARCH(1,1) model with w= 0.000002, a= 0.04, and beta= 0.94.