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Week 7 [26.11 - 2.12.18] How well do we know ourselves?


It is easy to assume that we know a lot about the world, our country or even our local community. However, in reality we know very little. It is very difficult to estimate things like age or race even in places we know well, much less in entire countries or the world. Our own biases and preconceptions which we are blind to make us unable to know the communities we live in. In his TEDx talk Alan Smith explains the difference between our knowledge and reality.



1.      Do you have any experience with statistics?
2.      How well do you think you know the area you live in?
3.      Have you ever been surprised by a statistic that was wildly different from what you’ve expected?

Source:

Comments

Statistics are boring but there are vital. But that does not mean that they cannot be boring. Personally I can understand why a lot of people are struggling with numbers: it is a pure human invention, by nature all creatures are abstract thinkers. Dealing with somewhat precise data is unnatural.
Bartosz Barnat said…
I have some experience when it comes to statistics. It was mandatory lessons in my studies. I learned new things but to be honest I don't remember much. If you would ask me about my area that I live in I think I could say a few things but I don't think of myself as a maven so when you have a little harder question to ask just go to someone else. I don't really look at statistics when im looking for some information but sometimes I saw statistics for example about game or computer components comparison and that really surprised me. Sometimes it's good to look on this colorful graphs because you might get the answer you are looking for from that.
Do you have any experience with statistics? I would rather say yes than no. I learned a lot about it when i was studying. Unfortunately, i don't know well the area i live in. There are a huge amount of things that i need to explore in the future about my living area. The thing is that i don't care at all about statistics that comes from unverified sources. But even if it would be right, i will analyze everything for 100 times and then i will decide, trust it or not.
Unknown said…
I don't have much experience if talking about practical statistics, but today generally everything involving analyzing and researching data is extremely popular and considered as an important part of modern life.
I'm pretty sure I don't know that much about the local area I live in because I don't really care about it.
Yes, I've seen different statistics made by different institutions about the same topic and I tend not to take them seriously right away. It's no secret that such research publication can sometimes be biased or even show false results just to manipulate the perception and opinions of the mass audience.
Yes, I had a class of statistics. I can't say that I had liked this class, but they were useful in some view. I think that I know the area where I'm living not too good to do some statistic of people here, but I think if it necessary you can do research and get close results to reality. It could be always surprise when you see the statistic results, but to my mind it's not so easy and with 100 people you can’t get realistic results, for it you need more people, it's only my opinion.
Yes I have. Actually still having due to my job. I'm a quite fan of statistic, to be exact, fan of statistical learning which means knowing something about data gives you an ability to make a prediction for that particular domain.
After I watched this Ted video I realized that I know a bit less that I thought.
I guess one of the most crazy statistical fact that: in a group of 23 people there is a 50% chance that two of them have the same date of birth and in a group of 70 people that chance rises up to 99%. Some people call it paradox, because it almost never happens.
Unknown said…
Yes, I do have an experience with statistics. Except the fact that it was a mandatory class in my university I like gathering some statistics on my own or exploring it in the web. I was really surprised by the fact that the chance of landing a job at Google is 10 times lower than a chance of getting to Harvard. From 3 mln people which apply to Google each year only 7000 of them are offered a contract.

I don’t think that I know my area good enough. I know only vital thing/places which I need in order to survive, nothing more , nothing less. I am not interested in history and religion that’s why I don’t know a lot about this topic.

Yes, I’ve already gave an example. I used to think that a chance to get to the one of the top universities in the word are less than a chance to get a job at Big 4(Amazon, Google, Facebook, Microsoft) but I was a little bit surprised when it turned out.
Unknown said…
Unfortunately all of IT students have to pass statistics so yes but I can't say it was fan rather counterintuitive. I don't think I do really know the neighborhood but I don't see why I should care about it. Statistics is such a topic that it's impossible not to be fascinated at least once. For example bayes theorem was the hardest for me to grasp.
Unknown said…
It's definitely true that people might not know much about their area simply because they don't really care to know. As for biased research publications showing false results, I think that oftentimes they don't even need to show false data. They can just manipulate real data and show it in a way that will make their claims seem true.
Unknown said…
I've heard about the birthday problem as well, and it's definitely a good example of something that is unintuitive at first glance. I suspect that what you decribed happens more often than people think. They just simply don't notice it when it happens.
Unknown said…
It's definitely true that people have trouble with using numbers to represent things - it's a lot easier for people to understand statistics when looking at graphs and visuals (like the tiny people figures shown in the video).
Unknown said…
Not trusting statistics is definitely a good attitude to have - one can never be sure if the data is true and if it was collected properly, and even then the data can be manipulated to show false conclusions using real information.
Unknown said…
I haven't experience with statistics. Only what at school.

Once I was running, I knew the whole area very well and now it is quite poor. For sure it has changed since then. I will return to running in some time, I will definitely run the whole area

Yes, but it's hard for me to remember about it.
Unknown said…
Yes, I have some experience with statistics. Except mandatory classes at university, I have recently become interested in Big Data area and dived deep into statistical foundations of many algorithms used in this field.
I think that I don’t know the area where I live in very well in terms of statistical data concerning population, infrastructure etc. because I simply don’t need this kind of information. Usually, I gain information that is really useful for me e.g.: about closed roads in my neighborhood or town hall opening hours.
I have been surprised many times with statistics concerning many areas, but I can’t now recall particular examples.
1. Do you have any experience with statistics?
Only a little bit - from mandatory university classes at PJATK or Warsaw University of Technology.

2. How well do you think you know the area you live in?
Not enough... I know just a few facts from the history, and a general opinion about my neighbourhood.

3. Have you ever been surprised by a statistic that was wildly different from what you’ve expected?
I was surpised many times, but it's hard for me to give You any example - sometimes there are articles at joemonster with some funny statistics.
Marcin Mróz said…
Statistics is a bit broad subject, I'm not sure what you really mean, but yes, I've got some experience. We had mandatory classes called SAD, on which we were taught some basics of statistics.
I know it definitely not good enough. I've recently moved to another district and I know just the area near my apartment. Some time ago one guy asked me where he could find a open-air gym and I didn't even know.
I was surely suprised by some statistic, I bet that everyone of us did. There are a lot of suprising researches that are made to shock people.
Unknown said…
1. Do you have any experience with statistics?
Yup. During studies we had a lessons of statistics. IT'S BOOOOOORING to me :/
I know it's useful and can show us many dependancies, but I still don't like to make some charts by myself.
2. How well do you think you know the area you live in?
I think I know it very well. I used to be a bad student some time ago.. like 5 years ago. And many times I was "underground". I know what's happening in my city. It's disgusting. I managed to get a good education and job and don't want to back to old life.
I must say that many things that no1 dreamt about are common in the steets and some may say it's a work of the devil.
3. Have you ever been surprised by a statistic that was wildly different from what you’ve expected?
Sometimes yes and sometimes nope. That's cause statistics is specific. It may be sometimes surprising and other times you just know exact % of something happening in something. Just from your own experience and observe skills.
Unknown said…
Not really. I finished some math courses, but that's all. I like reading various sort of statistics though. Unfortunately, I haven't seen any statistics about my local area yet, so I cannot elaborate on that topic.

Yes! I have a perfect example of why some of the conclusions we make out of statistics are just wrong. According to the statistics, on the airports placed next to the seashore turtles hit planes more often than birts. I know how crazy it is, but that's the fact! :D
The reason for is that airports have a good system of keeping birds away from the lines, but it works to some height. Many birds eat turtles or carry them to their nests to feed their children. To do so sometimes, they have to fly over the airport, it happens that the turtle can escape from their claws and it is falling down and hits the planes. That's the reason, but when you hear about it for the first time you catch your head and think "How the hell is that possible?"
1.Do you have any experience with statistics?
I think most of our behaviors are basing on the statistics. So everyone has some kind of experience in that matter. But speaking of an academic statistics I have attended a course which was very interesting.
2.How well do you think you know the area you live in?
I surely know how to move around my area and know some of the people living around me. I do not know much about history though.
3.Have you ever been surprised by a statistic that was wildly different from what you’ve expected?
People tend to assume that their individual point of view is commonly shared by others. A polish saying “Others do not measure your measure” is worth bringing up here. I sure have been surprised after finding out some facts basing on the statistics. Speaking of e.g. some researches done amongst people, i rarely get surprised by the amount of people who answer differently. More surprising actually are how huge variety of answers they give. It is very well pictured by an old TV show “familiada”
Unknown said…
Interesting - I wonder if perhaps leading safe and stable live creates a disconnect with the rest of the city, whereas dealing with the underground causes one to have a more accurate perspective on things.
Unknown said…
Interesting - I wonder if assuming that others share your point of view is a self-defense mechanism that helps one stay sane and maintain good relationships. Realizing that others have different beliefs, especially on topics such as politics and religion frequently causes rather heated 'disagreements', so perhaps thinking that others share your opinion is for the best.
Unknown said…
This is a quite hilarious statistics - I definitely did not expect planes of all things to have problems with "flying" turtles! This is definitely a good example of how statistics can surprise us.
Patryk Górski said…
1. Do you have any experience with statistics?

Yes. I didn't like it, it caused me a lot of troubles on my studies :/ maybe the problem was in my teacher, I think that it was hard for him to share his knowledge with me, that's why I had a lot of problems with it.

2. How well do you think you know the area you live in?

Like my own pocket ;) I think so...

3. Have you ever been surprised by a statistic that was wildly different from what you’ve expected?

I don't believe 100% in statistics, cause I'm sure that there are few ways to manipulate them, and since you can manipulate them - it's not worth believing 100% in it. Of course sometimes you can tell something based on statistics, but I wouldn't be so sure with it
Unknown said…
1. I have passed subject called 'statistic' on PJATK with well grade so I think that I have experience and knowledge about statistics.
2. I think that I know quite well area where I live in but I don't know which aspects of this place you have in mind.
3. I am surprised every time when I see results of elections poll in my country.
Do I have any experience with statistics? Well… Except for mandatory class in my university, I’m a data scientist and I don’t only read a lot of statistics, but make them every day. So I definitely know something about statistics.

I don’t think so. I know only things that I need to know or I am interested in.

Hmm… A lot of. The last one that I read was - “In the United States, every day, 1700 people are becoming millionaires.”. I was shocked by this number. I could imagine myself 30 - 50, but not 1700.
My only experience with theory of statistics comes from my studies. I don’t have much practical experience with drawing conclusions from graphs and numbers.

I know that I don’t know everything about the area I live it and I’m sure there are some statistics that I don’t want to see. I know my area well enough for me to feel safe, confident and cautious when needed.

I often am surprised about statistics that come from United States concerning quality of life, education and infrastructure. It’s often way worse that I imagine and it definitely doesn’t invoke „The American Dream” in me.

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