document.write( "Question 507484: Can someone please help me here? I am so confused, I am seeing so many different formulas, I have no idea where to start.\r
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document.write( "1. A set of 50 data values has a mean of 15 and a variance of 36. \r
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document.write( " Find the standard score of a data value = 30\r
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document.write( " I'm hoping someone will help me, I've posted 7 different questions in the past week for help, and only 1 was responded to. I'm looking for help to understand, not for someone just to do my work. I want to understand this please. Please explain this step by step so I can the rest of my problems on my own. Thank you
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Algebra.Com's Answer #340479 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! 1. A set of 50 data values has a mean of 15 and a variance of 36. \n" ); document.write( "Find the standard score of a data value = 30 \n" ); document.write( "---- \n" ); document.write( "standard deviation = sqrt(36) = 6 \n" ); document.write( "---- \n" ); document.write( "z(30) = (30-15)/6 = 15/6 = 2.5 \n" ); document.write( "---------------------------------- \n" ); document.write( "If you have problems, post them and send them \n" ); document.write( "to me after you have tried your best to solve \n" ); document.write( "them yourself. \n" ); document.write( "-------------- \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "stanbon@comcast.net \n" ); document.write( " |