My Math Forum Find Sk and Find Kv ( i got example formula below)

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 November 23rd, 2012, 08:06 AM #1 Senior Member   Joined: Mar 2012 Posts: 118 Thanks: 0 Find Sk and Find Kv ( i got example formula below) CI(class interval) 7-9 10-12 13-15 16-18 19-21 F(FREQUENCY) 2 10 12 9 7 a.find Sk (skewness) b.find kv (kurtosis) c.Graph the destribution
 November 23rd, 2012, 08:42 AM #2 Math Team   Joined: Oct 2011 From: Ottawa Ontario, Canada Posts: 14,316 Thanks: 1023 Re: Find Sk and Find Kv
 November 23rd, 2012, 08:52 AM #3 Senior Member   Joined: Mar 2012 Posts: 118 Thanks: 0 Re: Find Sk and Find Kv guys help me answer this pls
 November 24th, 2012, 06:59 PM #4 Senior Member   Joined: Mar 2012 Posts: 118 Thanks: 0 Re: Find Sk and Find Kv the formula i have on my notebook is sk=3(x-x)/q and kv = QD/ P90-P10 and how to draw here or i just say the question is about normal destribution
 November 24th, 2012, 08:55 PM #5 Senior Member     Joined: Jul 2012 From: DFW Area Posts: 635 Thanks: 96 Math Focus: Electrical Engineering Applications Re: Find Sk and Find Kv ( i got example formula below) Try looking at http://www.tc3.edu/instruct/sbrown/s...kewnessCompute. It has an example that is structured very much like your problem, with a range of values and frequency. I do not see similar formulae though.
 November 24th, 2012, 11:40 PM #6 Senior Member   Joined: Mar 2012 Posts: 118 Thanks: 0 Re: Find Sk and Find Kv ( i got example formula below) i did that boss do you think its sure check my formula is kinda different.but if no one answer i will do that one formula in your link the formula is kinda different there is always 3/2 at the end of your formula thats y im confuse and wanted some1 to answer it

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### kurtosis q/(p90-p10)

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