Homework Help: math gre ques

Posted by luckybee on Sunday, January 8, 2012 at 7:49pm.

A sudent is analyzing data from an experiment using a linear model. when the student entered the data into his calculator and ran a least squares linear regression the calculator gave a correlation coefficient of 0.01. what can the student infer from this coefficient?
a. the slope of the linear model is 0.01
b. the y-intercept of the linear model is 0.01

c. the x-intercept of the linear model is 0.01
d. the linear model is not a good fit

math gre ques - Damon, Sunday, January 8, 2012 at 8:02pm
a correlation coefficient of absolute value close to one is a good fit. A correlation coefficient close to zero is a poor fit. 0.01 is a poor fit.

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