# Stats

posted by .

What is the difference between covariance of two variables and the correlation coefficient of two variables?

• Stats -

covariance is the variance of two random variables during the same time period. Random means they are random, not coorelated. Correlation coefficent is the measure of how two somehow linked variables are linked.

## Similar Questions

1. ### Statistics

Hello, I have a question concerning predictivity/ or R squared of two sets of variables. what id like to do, is report r2,r2adjusted... for two models but i cant do hierarchical regression, because in the first set of variables I have …
2. ### statistics

the correlation between two random variables X and Y is p=-0.75.it is given that X=1,2or3 with equal probability of 1/3 and Y=-1,-2or-3 with equal probability of 1/3.the covariance is equal to?
3. ### Statistics

The linear correlation coefficient, r, is a numerical measure of the strength of the relationship between two variables representing quantitative data.
4. ### Statistics

True or false? The linear correlation coefficient, r, is a numerical measure of the strength of the relationship between two variables representing quantitative data.
5. ### psychology

correlation coefficient indicates a _______________ between two variables.
6. ### statistics

A student computes the correlation between two variables in a spreedsheet and finds r= 0.06.Is there a relationship between the variables?
7. ### biostatistic

Is this statement true or false: when calculating correlation coefficient between two continous variables, the scale on which the variables are measured affect the value of the correlation coefficient.
8. ### Finance

Use the following information to calculate the covariance of asset A with an equally weighted portfolio of assets B and C. Asset Standard Deviation A 20% B 30% C 40% The correlation coefficient between A and B is 0.6. The correlation …
9. ### Math (Stats)

In order to predict y-values using the equation of a regression line, what must be true about the correlation coefficient of the variables?
10. ### Probability, Random Variables, and Random Process

A zero-mean Gaussian random process has an auto-correlation function R_XX (τ)={■(13[1-(|τ|⁄6)] |τ|≤6@0 elsewhere)┤ Find the covariance function necessary to specify the joint density of random variables defined at times …

More Similar Questions