Tableau Trend Lines - Using Least-Squares Linear Regression -Part1
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In these notes, we present another technique for determining a line of best fit for a scater plot of data. This technique, called least-squares linear regression, or the least-squares line of best fit, is based on positioning a line so as to minimize the sum of all the squared distances from the line to the actual data points. Your challenge in mastering this material is to not only understand and be able to carry out the technique but also to compare its strengths and weaknesses with other best-fit techniques you are learning about. As with other methods we're learning, least-squares linear regression can be carried out with a calculator.
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