Answer:
(a) r = -0.947928522
(b) strong, negative
Explanation:
The Product Moment Correlation Coefficient (r) measures the strength of the linear correlation between two variables.
The PMCC is always between +1 and -1.
The closer the value of r is to +1 or -1, the stronger the correlation between the two variables.
- Values close to +1 mean a strong, positive correlation.
- Values close to -1 mean a strong, negative correlation.
- Values close to zero mean a weak correlation.
Inputting the data from the table into a calculator and using the statistical function:
r = -0.947928522
As the value of r is close to -1, the best description for the correlation would be strong, negative