You are watching: In the least-squares regression line, the desired sum of the errors (residuals) should be
A positive correlation coefficient shows that large values of x are linked with __________ values of y.
In regression analysis, the variable that is being predicted is dubbed the _______________ variable.
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When there is no a far-reaching relationship in between the variables, the value of r will certainly be approximately
1.+ r indicates + association and - rindicates - association between variables.2.r is constantly between -1 and 1.3. The closer |r| is come 1, the more powerful the association. A weak combination will have an r value close to 0.4. Correlation is strongly affected by outliers
Generally, the bigger the correlation (either confident or negative) between the variables for the simple linear regression model, the (better, worse) ____________ will certainly be the guess of y for given values of x.
is a line that defines the relationship in between the explanatory variable x and the solution variable y
For the an easy linear regression model, if every the points on a scatter plot lied in a right line through correlation coefficient r = -1, then the steep of the regression line is
When we room estimating y based on values that x that are much larger or lot smaller 보다 the rest of the data
square that the correlation r- that is the fraction of the sports in the worths of y that is explained by the regression line and also the explanatory variable
14. The correlation in between two scores X and Y equates to 0.8. If both the X scores and the Y scores are converted come z-scores, climate the correlation between z-scores for X and also z-scores because that Y would be
errorsvalue is the difference in between an actual observed y value and also the correspondingpredicted y value
consists of individuals from thepopulation preferred in together a means that every set of individuals has actually anequal opportunity to be the sample actually selected
characteristics of the individuals in a sample that space not measured throughout the study, but do impact the result