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A study of king penguins looked for a relationship between how deep the penguins dive to seek food and how long they stay underwater. For all but the shallowest dives, there is a linear relationship that is different for different penguins. The study report gives a scatterplot for one penguin titled The relation of dive duration (DD) to depth (D). Duration DD is measured in minutes and depth D is in meters. The report then says, The regression equation for this bird is: DD = 2.69 + 0.0138D.Step 1:What is the slope of the regression line?

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Answer:

0.0138 minutes/meter

Step-by-step explanation:

A linear regression model is given by the following general equation:

[tex]y= m*x +c[/tex]

Where 'y' changes as a function of 'x', 'c' is a constant and 'm' is the slope that dictates the rate of change.

The given equation for the duration of a dive (DD), in minutes as a function of  depth (D) in meters is:

[tex]DD = 0.0138D +2.69[/tex]

Comparing this equation to the general model, the rate of 0.0138 minutes per meter, is our slope 'm'

Therefore, the slope of the regression line is 0.0138.

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