please answer the following question. thank you

U Question 2 1 pts "A manufacturing firm is considering a project which has an economic service life of one year with no salvage value. The initial cost for the project is $1,080. There is a 0.23 probability that the year-end revenue is $2,840. There is a 0.56 probability that the year-end revenue is $3,650. There is a 0.21 probability that the year-end revenue is $4,950. If the firm's MARR is 16%, what is the variance of the project