document.write( "Question 246469: **Please help- I have this problem due in the AM**- I have to find the probability that a weight of a quarter is between 5.60 grams and 5.70 grams-
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document.write( "I was given 36 quarters with differents weights in grams, the mean is 5.61806 and the standard deviation is .06576, not sure what other info I need to solve this problem! \n" );
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Algebra.Com's Answer #180032 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! find the probability that a weight of a quarter is between 5.60 grams and 5.70 grams- \n" ); document.write( "I was given 36 quarters with differents weights in grams, the mean is 5.61806 and the standard deviation is .06576, not sure what other info I need to solve this problem! \n" ); document.write( "------------------- \n" ); document.write( "Find the z-value of 5.6 and of 5.7 \n" ); document.write( "z(5.6) = (5.6-5.61806)/[0.06576/sqrt(36)] = -1.6478 \n" ); document.write( "--- \n" ); document.write( "z(5.7) = (5.7-5.61806)/[0.06576/sqrt(36] = 7.4763 \n" ); document.write( "----------------- \n" ); document.write( "P(5.6 < x < 5.7) = P(-1.6478 < z < 7.4763) = 0.9503.. \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |