According to the stochastic interest rate model, the possibility of the first the annual interest rate will be 6.5% and that in the coming years it will be subject to probability distribution: 4.5% with a probability of 0.3 i = 6.5% with probability 0.5 8.5% with a probability of 0.2.

Set the value of the investment at EUR 50000 at the end of the fifth year.