ATAR Notes: Forum

VCE Stuff => VCE Mathematics => VCE Mathematics/Science/Technology => VCE Subjects + Help => VCE General & Further Mathematics => Topic started by: chuckjefster90 on October 14, 2009, 08:31:34 pm

Title: Median for scatter plot
Post by: chuckjefster90 on October 14, 2009, 08:31:34 pm

How do u find the median for data from  a scaterplot

Title: Re: Median for scatter plot
Post by: bigtick on October 14, 2009, 08:36:26 pm

ask your question properly

Title: Re: Median for scatter plot
Post by: chuckjefster90 on October 14, 2009, 08:37:40 pm

err how wud u find the median value for a set of data from a scatter plot?

Title: Re: Median for scatter plot
Post by: bigtick on October 14, 2009, 08:38:58 pm

'x' or 'y'?

Title: Re: Median for scatter plot
Post by: chuckjefster90 on October 14, 2009, 08:42:50 pm

y value

Title: Re: Median for scatter plot
Post by: bigtick on October 14, 2009, 08:45:53 pm

move vertically until you reach the point in the middle, or the middle between the middle 2.

Title: Re: Median for scatter plot
Post by: xXNovaxX on October 16, 2009, 04:22:18 pm

Quote from: chuckjefster90 on October 14, 2009, 08:37:40 pm

err how wud u find the median value for a set of data from a scatter plot?

lol :P. Nice re-phrasing

Title: Re: Median for scatter plot
Post by: jihan1234 on October 30, 2009, 02:18:24 pm

 IT must ask the median value for y (eg.height of dogs) or it must ask the median value for x (eg.number of dogs).
If so, what you do is for the median value for x, you count the number of values in the scatterplot then add one and divide 2. (n+1)/2). The you move from the from right to left from the x axis and see the number. Hope it helps, Its had explaining it