An investor puts $2,000 into a deposit account with a fixed rate of return of 10% per

Question:

An investor puts $2,000 into a deposit account with a fixed rate of return of 10% per year. A second sum of $1,000 is invested in a fund with an expected rate of return of 16% and a standard deviation of 8% per year.
a. Find the expected value of the total amount of money this investor will have after a year.
b. Find the standard deviation of the total amount after a year.