document.write( "Question 471525: The average number of mosquitoes in a stagnant pond is 80 per square meter with a standard deviation of 8. If 16 square meters are chosen at random for a mosquito count, find the probability that the average of those counts is more than 81.6 mosquitoes per square meter. Assume that the variable is normally distributed. \n" ); document.write( "

Algebra.Com's Answer #323398 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( "z = (x-u)/s = (81.6-80)/8 = .2 
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document.write( " P(x >81.6) = P( z > .2) = 1 - P(z ≤ .2) = 1 - .57926 = .42074 \n" );
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