MathsheetsPrintable math worksheets for teachers and families
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Line of Best Fit

Draw your line of best fit, then judge how closely the points follow it.

Example5667788899035810Hours studiedTest score
Draw a straight line that fits these points as closely as you can. Does a straight line model this data well? Explain.
A line sloping up fits best, since test score tends to rise as hours studied increases. The points lie close to that line, so a linear model fits well and predictions from it should be fairly reliable.
  1. 1.52668093107035810Hours studiedTest score
    Draw a straight line that fits these points as closely as you can. Does a straight line model this data well? Explain.
  2. 2.39152127036912Age of car (years)Price ($1000s)
    Draw a straight line that fits these points as closely as you can. Does a straight line model this data well? Explain.
  3. 3.01632486408172533Pages in the chapterMinutes to read
    Draw a straight line that fits these points as closely as you can. Does a straight line model this data well? Explain.
  4. 4.5463718088017345067Minutes of exercise per dayResting heart rate
    Draw a straight line that fits these points as closely as you can. Does a straight line model this data well? Explain.
  5. 5.1651851201542239557288Daily high temperature (°F)Cups of hot chocolate sold
    Draw a straight line that fits these points as closely as you can. Does a straight line model this data well? Explain.