document.write( "Question 1101783: The data list shows the scores of ten students in Mr. Smith's math class.\r
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document.write( "61, 67, 81, 83, 87, 88, 89, 90, 98, 100\r
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document.write( "What is the standard deviation, to the nearest tenth, of the data if the scores represent a sample of Mr. Smith's students?\r
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document.write( "What is the standard deviation, to the nearest tenth, of the data if the scores represent the entire population of Mr. Smith's students?\r
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Algebra.Com's Answer #716411 by richwmiller(17219)![]() ![]() You can put this solution on YOUR website! Mean: xbar = (∑i=1...10 xi)/10 = (61 + ... + 100)/10 = 84.4 \n" ); document.write( " \n" ); document.write( "Sum Of Squares in X \n" ); document.write( " \n" ); document.write( "SSX = ∑i (x - xbar)2 = (61 - 84.4)2 + ... + (100 - 84.4)2 = 1364.4 \n" ); document.write( " \n" ); document.write( "Standard deviation \n" ); document.write( " \n" ); document.write( "Sample: \n" ); document.write( " \n" ); document.write( "s = √[SSX / (10 - 1)] ≈ 12.3 \n" ); document.write( " \n" ); document.write( "Population: \n" ); document.write( " \n" ); document.write( "σ = √(SSX / 10) ≈ 11.7 \n" ); document.write( "https://www.wyzant.com/resources/answers/207611/the_data_list_shows_the_scores_of_ten_students_in_mr_smith_39_s_math_class \n" ); document.write( " |