![]() ![]() It is also the value the model would take or predict when x is 0.Ĭoefficients provide the impact or weight of a variable towards the entire model. Y-intercept is the point at which the line intersects the y-axis at x = 0. It is based on a mathematical equation that associates the x-coefficient and y-intercept. The regression line makes it easier for us to represent the relationship. ![]() The basic idea behind drawing this line is to minimize the distance between the data points at a given x-coordinate and the y-coordinate through which the regression line passes. This is known as the trend line in various BI tools. Scatterplot of GRE scores and chance of admittance Regression lineĭrawing a straight line that best describes the relationship between the GRE scores of students and their chances of admittance gives us the linear regression line. I’m using a small dataset that contains GRE (a test that students take to be considered for admittance in Grad schools in the US) scores of 500 students and their chance of admittance into a university.īecause chance of admittance depends on GRE score, chance of admittance is the dependent variable and GRE score is the independent variable. To better explain the numbers in the regression table, I thought it would be useful to use a sample dataset and walk through the numbers and their importance.
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January 2023
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