D, add all your answers than divide by how many numbers there are
No. To test whether a graph is a function or not you do the vertical line test where if a vertical line touches more than one point it is not a function
Answer:
The Pearson's coefficient of correlation between the is 0.700.
Step-by-step explanation:
The correlation coefficient is a statistical degree that computes the strength of the linear relationship amid the relative movements of the two variables (i.e. dependent and independent).It ranges from -1 to +1.
The formula to compute correlation between two variables <em>X</em> and <em>Y</em> is:

The formula to compute covariance is:

The formula to compute the variances are:

Consider the table attached below.
Compute the covariance as follows:


Thus, the covariance is 75.
Compute the variance of X and Y as follows:

Compute the correlation coefficient as follows:



Thus, the Pearson's coefficient of correlation between the is 0.700.
Answer:
its B
Step-by-step explanation: just took test
You have to multiple and then add to get
(5)(-8)+(7)(2)=-26