document.write( "Question 1180228: Q−1: [4+6+8+2 Marks] consider the salaries ($) of 10 employees working for a small company.\r
\n" ); document.write( "\n" ); document.write( "$2100, $2200, $2300, $2400, $2600, $2700, $2700, $2800, $2900, $3000.
\n" ); document.write( "a) Calculate the mean, median of the salaries.
\n" ); document.write( "b) Find the inter-quartile range of the salaries.
\n" ); document.write( "c) Calculate the standard deviation of the salaries.
\n" ); document.write( "d) Find the range.
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Algebra.Com's Answer #811071 by Boreal(15235)\"\" \"About 
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The median is mid-way between the already ordered numbers or half way between the 5th and 6th or $2650.
\n" ); document.write( "the mean is $2570
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\n" ); document.write( "The 25th percentile is the lower half of the data below the mean, which are the 5 elements below $2650, and their middle is $2300. Similarly ,the 75th percentile is $2800.
\n" ); document.write( "The IQR is the difference or $500.
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\n" ); document.write( "The SD for this is $3057, considering it as a sample. As a population, it would be $290.
\n" ); document.write( "The range is top-bottom or $900.
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