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Earn +20 ptsQ: Are regression and trend line the same?
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Why you call regression line as line of fit?
It is called the line of best fit because it tends to satisfy all the possible points in consideration at the same time with minimal variation.
What is the difference between a trend line and a line of best fit?
Oh, honey, let me break it down for you. A trend line is a general direction showing the overall trend of data points, while a line of best fit is a specific line that minimizes the distance between the line and the data points. So basically, a trend line is like a rough sketch, and a line of best fit is like the tailor-made suit that hugs those data points just right.
When doing linear regression if the correlation coefficient is positive the slope of the line is negative?
False.
How can you use a scatter plot to find an equation of a trend line?
By finding the line of best fit and using the straight line equation formula.
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.
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