Question 1128064
0 recovery is 0.60^5=0.078, probability of no recovery (0.6) to the 5th power.
1 recovery is 5(0.4)*0.6)^4=0.259, the 5 is the number of ways it can occur.
2 recoveries is 10*0.4^2*0.6^3=0.346
3 recoveries is 10*0.4^3*0.6^2=0.230
4 recoveries is 5*0.4^4*0.6=0.077
5 recoveries is 0.4^5=0.01
General form is nCr*p^r*(1-p)^(n-r)