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An X-Y scatter plot entitled ‘Male ideal and actual weights’, with actual weight in kilogrammes (kg) along the horizontal (x) axis and ideal weight (kg) along the vertical (y) axis. Points, each representing a male student, are located at the intersection of measured actual weight and self-perceived ideal weight. For example, a student weighing 70 kg who believes their ideal weight to be 60 kg appears on the plot at the (x,y) coordinate point (70, 60). Points are clustered in a group centred near (75, 70), with most points falling along a roughly linear grouping. There is a large gap between the last clustered point at (85, 90) and a single data point on the far right at approximately (110, 80). This (110, 80) point is labelled an ‘outlier’.

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Last updated September 9, 2010

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