Nobody will question you
Nobody will question you
19 comments
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Unless you're in a college statistics course, then if your line is off by a pixel your grade drops a full letter.
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Just saw the scatter plot and line and my mind immediately screamed "bullshit" without knowing what this was about at all. Only then I read the text.
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Label your x and y, you dirty heathen. Such offense, you're lucky you're not catching a b&.
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Look at that choice of axis scale tho
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Could be valid. Now if it had been logarithmic the pro tip might still be true, since many don't look at the axis either.
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What's the r² on this, like ... 0.3 ish?
Less?
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My guess is lower. I'd put the correlation at about -.35 to -.45, so that'd correspond to an R² of .1225 to .2025. But eyeballing correlations is hard.
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Assuming it's a correction line, I don't think you can tell from the slope of that line alone as the clustering will matter and correlations are finicky. Now, if it was a regression coefficient, that sexy line can be calculated just by looking at it (although we'd want to know if it was significant, lol).
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I was assuming its a simple linear regression fit, and attempting to eyeball the r², haha.
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Actual graph used to inform government decisions
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Nobody questioned Hubble so why would they question you?
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Zoom out so it looks better.
19 comments
Relevant xkcd
https://xkcd.com/2048/
It took too long for me to realize it was the same data.