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#11636

55

March 3, 2023, 2:17 p.m.

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//solving for two variables of {R^2, Regression, Error, Total} Stein: Can you do it? Stein: Let me rephrase that. Do it.

#11635

77

March 3, 2023, 2:16 p.m.

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//after teaching about chapter 9, proceeding to act as if we had finished the homework Stein: Did you have any other questions about chapter 9? Stein: Oh, I just had a brain-freeze. Remember what we were talking about ten minutes ago? Stein: I was just thinking that was last class. Stein: Forget everything I just said in the last 30 seconds. I'm losing my sense of where I am.

#11609

24

Feb. 24, 2023, 2:15 p.m.

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//chaotic stein anthology, february 23 "The thing about R^2 is that R^2 is r, squared." "R^2 is 53%. Nod your head, nod your head -- why are you nodding your heads? Shake your head, shake your head!" "I have a lot to say about this topic. I could talk for four hours about it. I could give a really good TED Talk about it. ... I could give 16 TED Talks about it." "There are certain things that Americans really like -- like guns, fast food, and rankings. ... That was really profound." "This was an obsession of mine -- arguing with Jay Mathews -- for a few years, and I even sent him a spreadsheet once."

#2: R^2 was not 53% but you could have easily thought it was, #3: regression to the mean and Sir Francis Galton, #5: the Challenge Index is horribly flawed // mod note: the challenge index sucks because it makes RM look better than us //mod note: that just means you're not taking enough APs, Andy

stein, applied_stat

#11545

77

Feb. 9, 2023, 5:34 p.m.

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//chaotic stein anthology, february 9 "I'm having a very good day today, because I got eight hours of sleep, which is unusual" "Whatever you want to do in the natural world -- measure the height of women, or the weight of dalmatians, or the width of thighs ..." "If you don't think 720 is a great [maths] SAT score, you're living in a bubble." "I'm sick of SAT scores; let's talk about iguanas!" "I don't really care where you get your percentiles. I'm going to use my chaAaAaArt, because I love it." "I'm going to use my chaAaAaArt, not only because I love it, but because saying cAlculAtor sounds dumb." "Suppose you're going to kidnap iguanas, and sell them in the exotic pet trade" "And this is why God gave us Algebra 1"

#1: entire class erupted into thunderous applause, #4: cf 11537, #7: Klees: "That's what Team Rocket did."

stein, applied_stat, chart

#11541

1111

Feb. 9, 2023, 1:07 p.m.

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Pd. 4 Stat Stein: Length is not everything, but it's a lot.

#11500

1717

Feb. 2, 2023, 8:06 p.m.

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//PD4 Stats Stein: You can also make a pictograph and draw people with and without Hepatitis C.

#11499

99

Feb. 2, 2023, 3:37 p.m.

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//chaotic stein anthology, february 2 "If you [Erik Sofiaj, pronounced /so'fi.ə/ and not /so'fi.ədʒ/] were a DJ, you could call yourself Mysterious J." "Do you know why this unit is called Unit 1? You might think it's because it's the first unit, but that's just a coincidence." "I suppose it would've taken a lot of work, but you could make a graph with pictures of people with hepatitis and without hepatitis." "You can't tattoo yourself. ... No, that's not a challenge. Don't try that." "I have, I think, like, 3 children. I'll call one of them, for the purpose of this story, Michael. ... His name is Michael." "Do you know this word? 'Outlier'? I usually just call them 'freaks'."

#11442

1313

Jan. 19, 2023, 9:35 a.m.

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// Stein explains his experience with crossword puzzle competitions Stein: That's why I don't like it when people turn tests in early. *All eyes turn on Jerry Song*

#11424

1616

Jan. 17, 2023, 10:23 a.m.

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Stein: Hey Siri, pick a random number between 1 and 28. Siri: A random number between 0 and 150 is 59.

#11351

418

Dec. 22, 2022, 10:08 a.m.

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Stein: So from now on we will just slide over the maths. Stein: *makes water sloshing sounds* Sudhish: *grunts*