SOLUTION: It is known that 20% of products on a production line are defective. Products are inspected until first defective is encountered. Let X = number of inspections to obtain first def

SOLUTION: It is known that 20% of products on a production line are defective. Products are inspected until first defective is encountered. Let X = number of inspections to obtain first def

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Question 1080050: It is known that 20% of products on a production line are defective. Products are inspected until first defective is encountered. Let X = number of inspections to obtain first defective. Find P(X=6)
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
This is worded a little differently and I take this as 5 non-defective before first defective on the 6th inspection.
That would be 0.8^5*0.2=0.0655.
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