SOLUTION: Assume the probability that you will make a sale on any given telephone call is 0.150.15. Find the probability that you​ (a) make your first sale on the fifth​ call, (b

Algebra ->  Probability-and-statistics -> SOLUTION: Assume the probability that you will make a sale on any given telephone call is 0.150.15. Find the probability that you​ (a) make your first sale on the fifth​ call, (b      Log On


   



Question 1105149: Assume the probability that you will make a sale on any given telephone call is 0.150.15. Find the probability that you​ (a) make your first sale on the fifth​ call, (b) make your sale on the​ first, second, or third​ call, and​ (c) do not make a sale on the first three calls
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
This is 0.85^4*0.15=0.0783
Sale on the first call is 0.15
make first sale (note editing) on second call is 0.85*0.15=0.1275
Make first sale on third call is 0.85^2*0.15=0.1084
Make no sale on first three calls is 0.85^3=0.6141