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Not necessarily. Often it is, but the line of best fit is simply an equation that closely matches the results. Therefore any line could be a line of best fit, linear, quadradic, or even cubic! The sky (and the results) are the limit.

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Q: Does the line of best fit have to be straight?
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Related questions

Why does best fit line does not touch all data points?

Because the "best fit" line is usually required to be a straight line, but the data points are not all on one straight line. (If they were, then the best-fit line would be a real no-brainer.)


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What is A line graph in which the data points do not fall along a straight line?

a line of best fit


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What is the straight line that comes closest to the points on a scatter plot?

line of best fit


What is a straight line that comes closest to the points on a scatter plot?

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Difference between line of best fit and curve of best fit?

one is straight and one is curved simple


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a line of best fit


What is a best-fit-line?

A best-fit line is the straight line which most accurately represents a set of data/points. It is defined as the line that is the smallest average distance from the data/points. Refer to the related links for an illustration of a best fit line.


What is the term for the straight line that comes closest to the points on a scatter plot?

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