SOLUTION: A machine that manufactures automobile parts produces 15% defective parts 7 of the time. If parts produced by this machine are randomly selected, what is the probability that

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Question 1138542: A machine that manufactures automobile parts produces 15% defective parts 7
of the time. If
parts produced by this machine are randomly selected, what is the probability that fewer than
3 of the parts are defective?

Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
If this is 15% defective parts
and one chooses 7 parts (not clear from what is written)
fewer than 3 means 2,1,0
for 0 it would be 0.85^7=0.3206
for 1 it would be 7C1*0.85^6*0.15=0.3960
for 2 it would be 7C2*0.85^5*0.15^2=0.2097
The sum is 0.9263