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What is the value of my regression's intercept?

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter4: Equations Of Linear Functions

Section4.6: Regression And Median-fit Lines

Problem 4GP

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Question

I plot some data and get a correlation coefficient of .4. The sample standard deviation for my Y variable is 10, and my sample standard deviation for my X variable is 12. The average Y value is 32 and the average X value is 20. What is the value of my regression's intercept?

Definition Definition Statistical measure used to assess the strength and direction of relationships between two variables. Correlation coefficients range between -1 and 1. A coefficient value of 0 indicates that there is no relationship between the variables, whereas a -1 or 1 indicates that there is a perfect negative or positive correlation.

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