document.write( "Question 431006: a population of 5,000 test scores are found to be normally distributed with a mean if 50 and a standard deviation of 10.
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Algebra.Com's Answer #299241 by ewatrrr(24785) $\"\"$ $\"About$

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document.write( "Hi
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document.write( "*Note: 
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document.write( " z =(55-50)/10 = 5/10 = .5
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document.write( " P( x <55) = .6915   69.15% of the scores
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document.write( "Percentage under the graph to the left of the green line: z=.5
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