document.write( "Question 1158385: A machine that manufactures automobile parts produces defective parts
\n" ); document.write( "13% of the time. If 7 parts produced by this machine are randomly selected, what is the probability that fewer than 3 of the parts are defective?
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Algebra.Com's Answer #781323 by Boreal(15235)\"\" \"About 
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This means 0, 1, or 2 parts are defective, and there is an 87% probability of not-defective. Look at the likelihood of getting no defectives.
\n" ); document.write( "for 0, the probability is 0.87^7=0.3773
\n" ); document.write( "for 1 it is 7*0.87^6*0.13=0.3945
\n" ); document.write( "for 2 it is 21*0.87^5*0.13^2=0.1769\r
\n" ); document.write( "\n" ); document.write( "that sum is 0.9487 and is the answer.
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