Question

Fit the data in the table to the following equations to get values for a and...

Fit the data in the table to the following equations to get values for a and b for each equation using least-squares. Which equation is a better fit? Why? Provide evidence to support your answers.

X 0 20 50 65 150
Y 0.381 0.264 0.18 0.151 0.086

1. y = a + bx

2. y = a + bx + cx?

3. y = 1+bax

Math   Statistics-And-Probability   
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