SOLUTION: A quality control inspector has drawn a sample of
11 light bulbs from a recent production lot. If the number of defective bulbs is
2 or more, the lot fails inspection. Suppose
2
Algebra.Com
Question 1041216: A quality control inspector has drawn a sample of
11 light bulbs from a recent production lot. If the number of defective bulbs is
2 or more, the lot fails inspection. Suppose
20% of the bulbs in the lot are defective. What is the probability that the lot will fail inspection? Round your answer to four decimal places.
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
Find the probability the lot will pass inspection and subtract this from 1 as it is a dichotomous (2 answer only) question.
probability none is defective is .8^11=0.0859
probability one is defective is 11 ways *.2^1*.8^10=0.2147
Those pass, anything else fails.
The probability of passing is 0.3006
The probability of failing (answer) is 0.6994.
RELATED QUESTIONS
A quality control inspector has drawn a sample of 12 light bulbs from a recent production (answered by ewatrrr)
A quality control inspector has drawn a sample of 7 light bulbs from a recent production... (answered by Boreal)
binomial distribution
A quality inspector has drawn a sample of 16 light bulbs from a (answered by ewatrrr,rothauserc)
A a quality control inspector examined 100 light bulbs and found 7 defective.at this rate (answered by Theo)
A quality-control inspector examined 200 light bulbs and found 29 defective, At this rate (answered by Fombitz)
A quality control inspector examined 200 light bulbs and found 18 defective.At this... (answered by neatmath)
The quality-control inspector of a production plant will reject a batch of syringes if... (answered by Boreal)
A quality control inspector examined 100 lightbulbs and found 7 of them to be defective.... (answered by rfer)
A quality control engineer at a light bulb plant estimates that 1% of the bulbs it sells... (answered by lynnlo)