SOLUTION: Frank Schmuck works for a beverage distribution company. From experience, he understands there is a 15 percent chance he will receive a slight shock whenever he does maintenance o

Question 361602: Frank Schmuck works for a beverage distribution company. From experience, he understands there is a 15 percent chance he will receive a slight shock whenever he does maintenance on a beverage dispensing machine. Frank is scheduled to work on 8 machines today.
a. What is the probability he will receive a shock on just the first and last machines he works on? ____
b. What is the probability he will not receive a shock from any of the machines? ____
c. Frank just finished working on the 7th machine and he has not yet received a shock. What is the probability he will be shocked on the 8th machine? ____

Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Frank Schmuck works for a beverage distribution company. From experience, he understands there is a 15 percent chance he will receive a slight shock whenever he does maintenance on a beverage dispensing machine. Frank is scheduled to work on 8 machines today.
a. What is the probability he will receive a shock on just the first and last machines he works on? 0.15^2*0.85^6 = 0.00847____
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b. What is the probability he will not receive a shock from any of the machines? 0.85^8 = 0.2725____
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c. Frank just finished working on the 7th machine and he has not yet received a shock. What is the probability he will be shocked on the 8th machine? 0.15__

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Cheers,
Stan H.
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