SOLUTION: In a sample study of saws, it was found the 7% were defective. Out of a sample size of 25 saws, what is the probability that more than 5 saws will be defective?
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Question 341892: In a sample study of saws, it was found the 7% were defective. Out of a sample size of 25 saws, what is the probability that more than 5 saws will be defective? Answer by edjones(8007) (Show Source):
You can put this solution on YOUR website! Let x=.93 and y=.07
Expand the binomial (x+y)^25 for the 1st 5 places obtaining:
x^25+25x^24y+300x^23y^2+2300x^22y^3+12650x^21y^4+53130x^20y^5=.9935...
1-.9935=.0065 probability that more than 5 saws will be defective.
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Ed
