/SQTDDTOT/ IS DEAD

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Post 'em faggots, and remember, at least try to [$search_engine] it before posting.

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So I routinely pressure wash old electronics and computing gear to clean all the munge out, and I use methylated spirits as a rinse agent to displace all the water. I'm kind of sick of wasting a liter of the shit everytime I run a batch though. Distillation comes to mind to seperate the water back out, but the only info I can find is on making hooch. Can any of you point me in the right direction in terms of process here?

/wsr/ can't seem to figure this one out so I thought I'd come here. People seem to be tossing up between b and a. What does Veeky Forums think?

b

For my coursework I have to write down the Cayley table for Dih(8). Do I have to write out all the matrices, or would it be okay to use symbols A and B for the basic reflection/rotation operations, and write everything as products of these?

I might be hideously wrong, but:

Changing the value of a finite number of points doesn't change the value of an integral. Therefore you could take a probability distribution function, arbitrarily set Pr(X = 8) to 0.3, and the cumulative probability would still be 1, so you'd still have a valid PDF. But obviously Pr(X = 8) is not zero. So the answer is (b).

*You'd have to scale the PDF by 0.7, because the overall sum of probabilities is no longer given by a simple integration as the function isn't smooth, instead it's (cumulative sum of function) + 0.3

Calc 2 brainlet here, I’m not sure why I lost points. Can anyone explain?

If you are trying to determine the strength of a correlation between a continuously measured variable X and a dichotomous variable Y, where Y stands for 1 yes or 0 no, how do you take into account that you only expect for example 60% of Y to be 1s?

math.stackexchange.com/questions/1259928/how-to-explain-why-the-probability-of-a-continuous-random-variable-at-a-specific