【题目】use the data shown in the table a the leftFind the equation of the regression line for the data. Then construct a scatterplot of (x. y) and sketch the regression line with it695410256110N 相关知识点: 试题来源: 解析 【解析】=-78.929x+576.179 ...
What Is the Slope of a Regression Line? A regression line generally shows the connection between some scatter data points from a dataset. The equation for aregression lineis: y = mx + b m= Slope of the Regression Line. B= Y-Intercept. You can also use the following formula to find th...
Describe the steps to find the equation of a line when given two points of intercept? Answer and Explanation: I assumed what you meant was two points of intercepts with x- and y-axis. If that is correct, you can find the line equation as follow. Step 1. Find...
Regression analysis is being used to find the line of best fit (y = a + bx) from eleven pairs of data. The calculations have produced the following information. What is the value of ‘a’ in the equation for the line of best fit (to 2 decimal places)? A、0.63 B、0.69 C、2.33 D...
Consider the following: x123456 y4.532.5221.5 Find an equation of the least-squares line for the data. Least Square: The standard approach is used in the regression interpretation which determines the approximate explication of the overdetermined operations by reducing the sum of sq...
Regression analysis is being used to find the line of best fit (y = a + bx) from eleven pairs of data. The calculations have produced the following information: Σx = 440, Σy = 330, Σ(x*x) = 17,986, Σ(y*y) = 10,366 and Σxy = 13,467What is the value of ‘a’ in...
Linear regression is a mathematical method that can be used to obtain the straight-line equation of a scatter plot. Start by placing your data into a table. For this example, let us assume that we have the following data: (4.1, 2.2) (6.5, 4.5) (12.6, 10.4) ...
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The slope of the regression line is a measure of the steepness of the line. It’s a numeric value that tells us how two variables are correlated. It tells us how much the dependent variable will change in case there is a change in the independent variable....
Linear regression is a mathematical method that can be used to obtain the straight-line equation of a scatter plot. Start by placing your data into a table. For this example, let us assume that we have the following data: (4.1, 2.2) (6.5, 4.5) (12.6, 10.4) ...