This scatterplot above uses Cartesian coordinates to display values for two variables from a given set of data. The data is then displayed as a collection of points with each having the value of a variable determining the position of the horizontal axes and other variables determining the position on the vertical axes. On the scatterplot above the vertical axes if the wife's age and the horizontal axes is the husbands age. The collection of points is positive considering it is moving up and to the right.
http://images.google.com/imgres?imgurl=http://www.mzandee.net/~zandee/statistiek/stat-online/chapter4/graphics/age_scatterplot.gif&imgrefurl=http://www.mzandee.net/~zandee/statistiek/stat-online/chapter4/pearson.html&usg=__914qCRxxlhsZIPs0iySmpD34iRY=&h=350&w=385&sz=5&hl=en&start=1&um=1&itbs=1&tbnid=nOUtkebkMbVnJM:&tbnh=112&tbnw=123&prev=/images%3Fq%3Dscatterplot%26um%3D1%26hl%3Den%26client%3Dsafari%26sa%3DN%26rls%3Den%26tbs%3Disch:1
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