Codes that used for these questions from walfram cloud

Question I: Use Wolfram Cloud to evaluate the 970/0 confidence interval of the portfolio of three risky independent financial assets, with initial values of $1200, $1500, and $1700, that have experienced returns following M 10/0, 1.3%), N(3%, 1.4%), and N(5%, 1.6%) distributions, respectively, after a specific time Question 2: The one step return rates of stock price subject to the random walk model which has a positive displacement 2% occurring with a probability 0.25 . Use Wolfram Cloud to evaluate the possible values and their probability for the return rate k(2,5) Question 3: Use Wolfram Cloud to evaluate the days count of satisfying daily return rates enclosed between -2% and 3% resulting from that daily high observation of the stock prices for the Dell company