A Specific Automotive Part That a Service Station Stocks in Its

Multiple Choice

A specific automotive part that a service station stocks in its inventory has an 8% chance of being defective. Suppose many cars come into the service station needing this
Part each week. What is the expected number of parts retrieved until the first defective?

A) 8
B) 12.5
C) 10.5
D) 15
E) 20