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Biologists have observed that the chirping rate of crickets of a certain species is related to temperature, and the relationship appears to be very nearly linear. (a) Find and graph the regression liney=(b) Use the linear regression to estimate the chirping rate at 100 F

Biologists have observed that the chirping rate of crickets of a certain species is-example-1
User ElCharro
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To find the regression line, first, we have to calculate the mean of each column, let's call X Temperature and Y Chirping Rate. The equation we have to find has the form


y=a+bx

Where,


\begin{gathered} a=(n\Sigma xy-(\Sigma(x))(\Sigma(y))/(n\Sigma(x)^2-(\Sigma(x))^2) \\ b=(\Sigma y-b(\Sigma(x)))/(n) \end{gathered}

Where n = 9. Let's create a table to show each summation.

User Afrederick
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