document.write( "Question 1169805: Q-4: [7+3+5+5Marks] A manufacturer has 3 machines〖 B〗_1,B_2 and B_3, make 35%, 40% and 25%, respectively, of the products. It is known from experience that 2%, 3% and 1% of the products made by each machine respectively are defective. If a finished product is randomly selected:
\n" ); document.write( "A-What is the probability that it is defective?
\n" ); document.write( "B-What is the probability that it is not defective?
\n" ); document.write( "C-If the product is defective, what is the probability it was made by machineB_3?
\n" ); document.write( "D-If the product is not defective, what is the probability that it was made by machineB_1?
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Algebra.Com's Answer #794657 by Boreal(15235)\"\" \"About 
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--------D--------ND-----Total
\n" ); document.write( "B1------7--------343----350
\n" ); document.write( "B2-----12--------388----400
\n" ); document.write( "B3-----2.5-------247.5---250
\n" ); document.write( "--------21.5------978.5--1000\r
\n" ); document.write( "\n" ); document.write( "probability defective is 2.15% skewed towards the left a little consistent with B1 and B2 predominating.
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\n" ); document.write( "not defective is the complement or 97.85%
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\n" ); document.write( "if defective, made by B3 is 2.5/21.5 or 11.63% probability
\n" ); document.write( "-
\n" ); document.write( "if not defective, 343/978.5 made by B1 or 35.05%
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