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.)
A scatter plot would be best for non-related data points. A line graph would be best for related data points.
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.
a line of best fit
If most of them lie below the line, then that line isn't the best fit. The exact layout depends on what definition you use for "best fit", but any definition will produce a line that has roughly the same number of data points on each side of it.
A line of best fit, also known as a trend line, is a straight or curved line that best represents the data points plotted on a scatter graph. It minimizes the distance between the line and the data points, often using a method like least squares to ensure the best overall representation. This line helps to illustrate the relationship between the variables and can be used for making predictions based on the data.
A scatter plot would be best for non-related data points. A line graph would be best for related data points.
A straight line which best describes the data on a scatter plot is called a "line of best fit". The line could pass through some of the points, all of them, or none of them.
Data points that are not close to the line of best fit are called outliers.
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.
a line of best fit
a line of best fit
line of best fit.
a line of best fit
yes
a line of best fit
False
If most of them lie below the line, then that line isn't the best fit. The exact layout depends on what definition you use for "best fit", but any definition will produce a line that has roughly the same number of data points on each side of it.