The curtate future lifetimes of a beneficiary aged x and her spouse
aged y are subject to the following independent probabilities of
death.
k q(x+k) q(y+k)
0 .25 .50
1 .75 .50
2 1.00 1.00
You may assume i=10%. Determine a(xy). The actuarial present value
of an annuity payable at the beginning of each year as long as either
beneficiary is alive.(note: a bar should be place over xy and dots
over a).
-Brian