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Cumulative Frequency 2 - Median and Quartiles

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Uploaded by on May 3, 2008

Investigating how cumulative frequency diagrams are used to estimate the medianand quartiles of a frequency distribution. Based on an applet available free at www.waldomaths.com.

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Education

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Uploader Comments (rfbarrow)

  • 5. What is the maximum possible value of the ordinate of a cumulative frequency distribution diagram?

    i need answer, please

  • @drbandar Which ordinate do you mean? The vertical one is 360. The horizontal one is somewhere between 7 and 8 - you don't know exactly where.

  • how do i find a median using a cumulative histogram? NOT A LINE GRAPH

  • @M88169 Join the top right points of your rectangles with straight line segments. Then you've got a cumulative frequency graph like the ones in the video.

  • rly good mate can u do one on Histograms?? thanks rly helped me for GCSE!!

  • @rickstercrook Videos on histograms on my website waldomaths

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  • Thanks! Your video was a great help!

  • You're a good teacher

  • please come teach at my school :L i understand when you say it, my teacher just confuses me :/

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