This model fits 96% of the data points exactly.
A)This is not correct.This model fits 48% of the data points exactly.
B)This is not correct.This model fits 100% of the data points exactly.
C)This is not correct. $\mathrm { R } ^ { 2 }$ gives the fraction of variability,not the fraction of data values.
D)This is correct.
E)This is not correct. $\mathrm { R } ^ { 2 }$ is a measure of the straightness of the regression.

Question

Quizplus · Accepted Answer

The given code "11ea9518_d54c_916f_9016_af9a2d9a4f08_TB3450_11" refers to the fraction of variability, which is expressed as the coefficient of determination (R-squared) in regression analysis. It represents the proportion of the variance in the dependent variable that is predictable from the independent variable. It does not indicate how many data points are fitted exactly by the model, so options A, B, and E are incorrect. The statement in option D may or may not be correct, but it is not relevant to the given code. Hence, the correct answer is C.

This Model Fits 96% of the Data Points Exactly R2\mathrm { R } ^ { 2 }R2

This Model Fits 96% of the Data Points Exactly $\mathrm { R } ^ { 2 }$