document.write( "Question 830451: The reading speed of 2nd grade students in a large city is approximately normal, with a mean of 89 words per minute and a standard deviation of 10 words per minute.\r
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document.write( "what is the probability a randomly selected student in the city will read more than 93 words per minute? \n" );
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Algebra.Com's Answer #500662 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! The reading speed of 2nd grade students in a large city is approximately normal, with a mean of 89 words per minute and a standard deviation of 10 words per minute. \n" ); document.write( "what is the probability a randomly selected student in the city will read more than 93 words per minute? \n" ); document.write( "-------- \n" ); document.write( "z(93) = (93-89)/10 = 0.4 \n" ); document.write( "------- \n" ); document.write( "P(x > 93) = P(z > 0.4) = 0.3446 \n" ); document.write( "================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "---------------- \n" ); document.write( " |