Buh, I guess. Like, say you did a graph of electricity use among several different households. But everybody had a fridge, and all the fridges used the same electricity. The line for how much the fridge used would be the same for all of them, and it would therefore be a horizontal line. But who cares, right? It's the same for everyone, a control. It doesn't prove that they use different amounts of electricity. What matters is how much electricity the OTHER appliances use, which probably wouldn't be a horizontal line. Does this make any sense? Maybe not. I know what I mean to say, but I don't know if I'm saying it right.
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Here's a horizontal line with no correlation.
2006-10-16 08:29:31
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answer #1
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answered by SlowClap 6
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