Question

What is the exponential regression equation to best fit the data?

Round each value in your equation to two decimal places.

Enter your answer in the box.

yˆ =

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Answer 1

Yeah you cant do this by hand, you'd need a calculator

use Desmos to plot the points (or use your own calculator if you have one and I can walk you through it)

Answer 2

Oh ok lol, I do have a calculator

Answer 3

If you have a Ti 83 or 84, you can do this easily. It works for other calculators too. I plugged in the numbers in L1 and L2, then calculated for the Exponential regression. YOu'll get

yhat=11.5466(1.8484)^x,
with r^2=0.9680 and r=0.9839. Since the r^2 value is fairly high, we know that 96.80% of the variance of the y values are explained by the Exponential regression line of the x variable.

Answer 4

Sorry, forgot to round to 2 decimal places. That would then make it
yhat=11.45(1.85)^x