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Welcome back to statistics.

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Today we do a case study in regression.

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In this case study, I will use again the data that you all submitted

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about my current weight called L and my previous weight from last year

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as you guessed it all in kilograms called P.

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Here is my question for you as a well-trained statistician.

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What is the very first thing I'll do?

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Compute the mean, the variance, and similar simple statistics?

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Run a scatterplot?

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Or go straight to the end and run my regression methods

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to see what's the best line that fits the data? Pick one.