frequency density and cumulative frequency

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does anybody happen to have any notes on these? including histograms, mean = fx/x etc? thank you :)

Posted: 03-06-11 15:12 by megan smith

well cumulative frequency is the frequency added up class by class and frequency density is frequency divided by class width

try this http://getrevising.co.uk/resources/histograms2

Modified once, last modified by Lauren Jade Tutchener on Sun 5th June, 2011 @ 16:24

Posted: 05-06-11 16:23 by Lauren Jade Tutchener

very helpful, thanks!

Posted: 05-06-11 20:02 by megan smith

on graphs, cumulative frequency: plot at TOP of range!
frequency: plot at MIDDLE of range!
on histograms: it's the area that determines the frequency :)

Posted: 05-06-11 21:06 by Kelly:)