A three-year temporary life annuity will pay 2 at the end of the first year, 5 at the end of the second year, and 4 at the end of the third year. Given that pso = 98, ps\ = .978, ps2 = 975 and

/ = .07, find the mean and variance of the present value random variable for this annuity issued to a 50-year-old.