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Why is it preferable to draw a line of best fit rather than to connect the dots?
show a trend
Does the line of best fit have to start from the origin?
The line of best fit does not have to pass through the 0 (origin) and rarely does
How do you find a line of best fit from scatter plot?
The line of best fit is simply the line that shows the general direction of the graph. The trick is to make the line go through as many points on the graph as possible. Some scatter plots have no line of best fit.
Does the line of best fit have to be straight?
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.
How do you find the line of best fit for a scatter plot?
Start by putting your ruler following the graphs trend (neg/pos) then either draw the line through as many points as possible or ,preferably with an equal no. Of points on each side of the line
Is it ALWAYS possible to draw a line or curve of best fit in a scatter plot?
yes
What is a best fit line on a graph?
When points are marked on a graph, a line is often drawn across the dots plotted. A line of best fit is a straight line that goes through as many of such points as possible.
Why is it preferable to draw a line of best fit rather than to connect the dots?
show a trend
How do you draw a best fit line?
As I know, it is like this... From the bottom point you have put, you connect it till the end point with just a straight line. You don't follow every points as that isn't line of best fit. Hope that did help! :)
When should I draw a smooth curve a best fit line or only join the plots (I am especially thinking about Biology for that last one)?
You should use a curve if the scatter plot shows a clear curving shape. Otherwise draw a straight line. But a line of best fit should never zigzag from point to point.
How do you make a best fit line graph?
You want to draw a line through your plotted points and try to get equal amounts on either side.
Does the trend line always pass through every point on a scatter plot?
No. When you draw a best line of fit on the scattered plot, the line would not be straight.
Is the best fit line the same as the line of best fit?
Yes but phrased differently
What is a line of best fit on a line graph?
The line that minimized the sum of the squares of the diffences of each point from the line is the line of best fit.
What is a line that is not a line but is almost a line?
A line of best-fit.
Are the points connected in a scatter plot?
No, you draw a general line through the middle of the points.(A line of fit)
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.)
