You want to find the linear relation between the number of X-ray machines purchased at one time and the cost per machine. The following data has been obtained on the same:
|X: Number of machines purchased||1||3||6||10||15|
|Y: Cost per widget (in thousand rupees)||89||85||79||73||64|
Suppose the R² between X and Y is 0.87. Which of the following conclusions can you draw from this?