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What does the sign of the correlation coefficient tell you about the association?
Positive correlation = positive association Negative correlation = negative association
Are negative correlation and reverse correlation same?
No.
Can the variance of a sample be negaTIve?
No.
Is 0.5 the strongest correlation coefficient?
No. The strongest correlation coefficient is +1 (positive correlation) and -1 (negative correlation).
What is a negative correlation?
A negative correlation is a measure of the linear component of a relationship where one variable increase as the other decrease.
What a correlation of 0.30 means that the independent variable explains -- percent of the variance in the dependent variable?
The independent variable explains .32*100 percent of the variance in the dependent variable.This is 9%.The explainable variance is always the square of the correlation (r).
What is the difference between negative price variance and volume variance?
Negative price variance is when the cost is less than budgeted. Volume variance is a variance in the volume produce.
How much variance has been explained by a correlation of .9?
81%
Can variance be negative?
Since Variance is the average of the squared distanced from the mean, Variance must be a non negative number.
What is the difference between positve and negative correlation?
Positive correlation has a positive slope and negative correlation has a negative slope.
How much variance has been explained by a Pearson correlation of 0.9?
81
Can standard deviation and variance be negative?
No. Neither the standard deviation nor the variance can ever be negative.
What does the sign of the correlation coefficient tell you about the association?
Positive correlation = positive association Negative correlation = negative association
What values can variance not equal in math?
Variance cannot be negative.
Are negative correlation and reverse correlation same?
No.
What are three types of correlations?
positive correlation-negative correlation and no correlation
Can the variance of a sample be negaTIve?
No.
