document.write( "Question 607992: Can someone help me with this question and provide answers to the questions? Standard amounts of five different insecticides are found to kill 35%, 45%, 85%, 65% and 90% respectively of a fixed size of insect population. If one of the insecticides is chosen at random, what is the probability that it will kill:\r
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\n" ); document.write( "\n" ); document.write( "b) at least 45% of the insect population?\r
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\n" ); document.write( "\n" ); document.write( "c) between 40% and 80% of the insect population?\r
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\n" ); document.write( "\n" ); document.write( "d) If two of the insecticides are chosen at random, what is the probability that any one of the pair chosen will kill at least 85% of the insect population?\r
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Algebra.Com's Answer #382984 by ewatrrr(24785) $\"\"$ $\"About$

You can put this solution on YOUR website!

 
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document.write( "Hi
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document.write( "  types killing 35%, 45%, 65%, 85%, and 90% of the Insects
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document.write( "choosing one at tandom
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document.write( " P(≥ 65%) = 3/5
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document.write( " P(≥ 45%) = 4/5
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document.write( " P(40%-80%) = 2/5
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document.write( "If two of the insecticides are chosen at random
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document.write( "P(anyone of the pair ≥ 85) = 1-not chosen = 1-  = 1-6/20 = 14/20 = 7/10 \n" );
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