Strength of the Regression Model: You want to find the linear relation between the number of X-ray

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?

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