Can some please show me how solve this type of question in excel?

A multinational company invests a certain amount of dollars in a project. The following table lists all the possible future returns {5; in millions) associated with the respective probabilities. Let X represent the return (5; in millions) in this random process. Calculate the population mean of x (5; in millions]. 15.25% 10.18% 10.37% 185595 10.50% 18.05% |18AO5 1) Let X represent the returns (5; in millions) in this random process; Calculate the population mean of x (S; in millions). 2) Let X represent the returns (5; in millions] in this random process; Calculate the population variance square of x (S; in squared millions}. 3) Let X represent the returns (5; in millions] in this random process; lCalculate the population standard deviation of x (5, in millions}