document.write( "Question 1199932: A sample preparation for a chemical measurement is completed correctly by 25% of the lab technicians, completed with a minor error by 72% and completed with a major error by 3%. What is the probability that it is completed with either a minior or a major error? \n" ); document.write( "

Algebra.Com's Answer #833920 by ikleyn(53764) $\"\"$ $\"About$

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document.write( "We have 3 events, and from the context, these events are DISJOINT.\r\n" );
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document.write( "Therefore, the probability that the preparation is completed with either a minor or a major error is the sum\r\n" );
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document.write( "    0.72 + 0.03 = 0.75.    ANSWER\r\n" );
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