This is How Easy It Is to Lie With Statistics
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Published 2019-02-04
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This video is about how misleading statistics can be (even when the numbers are 100% correct).
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All Comments (21)
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Well....we'll see what you guys think of this one. I know it's a little different from usual but once I read about a few of these stories I had to make a video about the topic. Hope you guys enjoy! Next video will be about the mathematics of crime and some of the things seen in the show 'Numb3rs'.
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We interviewed 1000 people that have played russian roulette before. 100% of them survived the game. Conclusion: Russian roulette is completely safe to play.
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Statistics have shown that if you start a sentence with "Statistics have shown" people are more likely to believe you.
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I remember that I had a math exam where one of the tasks was to manipulate a diagramm to make one computer company look better than the other.
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7:00 "Dropout rates double, from 5% to 10%" is how I'd frame this data.
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If you torture the data long enough, it will confess to anything.
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"If 4 out of 5 people suffer from radiation poisoning, does that mean that the 5th guy enjoys it?" -Codsworth, Fallout 4
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I read one on which countries had the largest increase in murder rates. New Zealand had an increase of 300 percent , however if you looked at the actual numbers they went from one murder in a year to 3 . I think I would be willing to take my chances
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the story of the mother losing her children and being convicted with stats really hit me... like deeply.
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I remember my algebra teacher telling us about this, saying that statistics show people with bigger feet are better at math. None of us could have guessed that the statistic studied all ages, so it included babies and toddlers.
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YouTube occasionally gets the recommendations right.
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Lessons: 1. In graphs, always include 0 2. When giving percentage changes, always provide both percent increase (if it doubled, its a 100% increase) and percentage point increase together (if it went from 1% to 2%, it increased by 1 pp)
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My Grandpa used to say, “Figures don’t lie, but liars figure.” So much truth in that. I’ve always kept that in the back of my head when I see statistics….especially statistics that push a narrative.
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My Statistics teacher told me "Statistics is like a Bikini, what it reveals is interesting, what it hides is crucial."
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Food and water are overrated: you can live without them for the rest of your life
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The dog/animal with 4 legs explanation is amazing. It captures the essence of the fallacy so well and packs it into a tangible example.
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I ran into this recently with my job as an auditor. We evaluated the reasonableness of a company’s marketing expense by comparing it to revenue. The idea was that if their revenue went up, it was due to increased marketing expenses (I know there can be other factors too). Anyways, most months their expense hovered around 2% of revenue. One month it was 3.5%. My staff told me “that’s less than a 2% increase; it’s very trivial”. I said “that’s a 60% increase- it’s worth looking into”.
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"1 in 20 people is the victim of a crime." "Which means 19 in 20 people are criminals." - random british show
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It’s like saying “ it’s easier to get into Harvard than a job at Walmart” - Walmart acceptance rate - 2.6% - Harvard acceptance rate - 5.2%
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10:55 I love how "Losing in Fortnite" is described as a third factor.
