Answer:
The correlation coefficient for the data shown in the table is:
r=1
Explanation:
We are given a data set as:
x y
0 15
5 10
10 5
15 0
Cl;early from the data set we could see that as the x-value is increasing by a constant term i.e. 5 than the y-value is also decreasing by a constant term i.e. 5.
Hence, the function that can be best used to describe these data points is:
y= -x+15
This means that there is a negative correlation.
Also, the relationship is strictly linear as all the data point lie above these line.
Hence, we know that for a strong linear relationship.
Hence, the correlation coefficient is: 1