What is the current value of a future sum of money called? current value present value future value

The current value of a future sum of money is called :

                Present value.

Present value--

In economics and finance the present value gives us the information of how much the future sum of money is worth today.

The future cash flow is discounted at some rate.

If the discount rate is higher the present value of the future money is low.

Present value is also known as  present discounted value.

85.560%

step-by-step explanation:

conditional probability is defined as:

p(a|b) = p(a∩b) / p(b)

in other words, the probability that a occurs, given that b has occurred = the probability that both a and b occur / the probability that b occurs.

in this example:

p(turns 64 | turns 44) = p(turns 64 & turns 44) / p(turns 44).

if someone turns 64, they must have already turned 44, so:

p(turns 64 | turns 44) = p(turns 64) / p(turns 44)

on page 42, we see that of the original 100,000, 94944 turn 44, and 81234 turn 64.   therefore:

p(turns 64 | turns 44) = 81234 / 94944

p(turns 64 | turns 44) = 0.85560