document.write( "Question 1167732: 12,500 | 17,700 | 22,300
\n" ); document.write( "14,800 | 19,400 | 24,800
\n" ); document.write( "15,200 | 20,200 | 27,600
\n" ); document.write( "15,300 | 21,200 | 28,200
\n" ); document.write( "15,900 | 22,100 | 35,200\r
\n" ); document.write( "\n" ); document.write( "If the average and standard deviation of their components are 20,860 and 6, 168 respectively, determine the corresponding for the (use chebyshev theorem)
\n" ); document.write( "a.) 2nd standard deviation at the left side of the mean
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Algebra.Com's Answer #852092 by CPhill(1959)\"\" \"About 
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To determine the value corresponding to the 2nd standard deviation at the left side of the mean, we will use the given average (mean) and standard deviation.\r
\n" ); document.write( "\n" ); document.write( "**Given:**
\n" ); document.write( "* Average (Mean, $\mu$) = 20,860
\n" ); document.write( "* Standard Deviation ($\sigma$) = 6,168\r
\n" ); document.write( "\n" ); document.write( "We need to find the value that is 2 standard deviations to the left (below) the mean.\r
\n" ); document.write( "\n" ); document.write( "**Calculation:**
\n" ); document.write( "Value = $\mu - 2\sigma$
\n" ); document.write( "Value = $20,860 - 2 \times 6,168$
\n" ); document.write( "Value = $20,860 - 12,336$
\n" ); document.write( "Value = $8,524$\r
\n" ); document.write( "\n" ); document.write( "The value corresponding to the 2nd standard deviation at the left side of the mean is 8,524.
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