document.write( "Question 1197346: 6. The time it takes for high school boys to run a mile is distributed
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document.write( "a. What percentage of high school boys can run a mile in faster than 400 seconds?
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Algebra.Com's Answer #830574 by ewatrrr(24785)![]() ![]() You can put this solution on YOUR website! \r\n" ); document.write( "Hi \r\n" ); document.write( "µ = 460 and σ = 40\r\n" ); document.write( "What percentage of high school boys can run a mile in faster than 400 seconds?\r\n" ); document.write( " P(x> 400) = 1 - P( x ≤ 400) = 1 - normalcdf(smaller, larger, µ, σ) \r\n" ); document.write( " P(x> 400)= 1 -normalcdf(-9999, 400, 450, 40) = 1 - .0668 = .9332\r\n" ); document.write( " -9999 being a place holder for the smaller number\r\n" ); document.write( "NOte: σ = 40, 400 is 1.5sd below mean. \r\n" ); document.write( " What percentage of high school boys can run a mile in faster than 400 seconds?\r\n" ); document.write( " 93.32%\r\n" ); document.write( "Wish You the Best in your Studies.\r\n" ); document.write( " \n" ); document.write( " \n" ); document.write( " |