What Is Statistics: Crash Course Statistics #1
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- čas přidán 23. 01. 2018
- Welcome to Crash Course Statistics! In this series we're going to take a look at the important role statistics play in our everyday lives, because statistics are everywhere! Statistics help us better understand the world and make decisions from what you'll wear tomorrow to government policy. But in the wrong hands, statistics can be used to misinform. So we're going to try to do two things in this series. Help show you the usefulness of statistics, but also help you become a more informed consumer of statistics. From probabilities, paradoxes, and p-values there's a lot to cover in this series, and there will be some math, but we promise only when it's most important. But first, we should talk about what statistics actually are, and what we can do with them. Statistics are tools, but they can't give us all the answers.
Episode Notes:
On Tea Tasting:
"The Lady Tasting Tea" by David Salsburg
On Chain Saw Injuries:
www.cdc.gov/disasters/chainsa...
www.ncbi.nlm.nih.gov/pubmed/1...
www.hindawi.com/journals/aem/...
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Mark Brouwer, Nickie Miskell Jr., Jessica Wode, Eric Prestemon, Kathrin Benoit, Tom Trval, Jason Saslow, Nathan Taylor, Divonne Holmes à Court, Brian Thomas Gossett, Khaled El Shalakany, Indika Siriwardena, Robert Kunz, SR Foxley, Sam Ferguson, Yasenia Cruz, Daniel Baulig, Eric Koslow, Caleb Weeks, Tim Curwick, Evren Türkmenoğlu, Alexander Tamas, Justin Zingsheim, D.A. Noe, Shawn Arnold, mark austin, Ruth Perez, Malcolm Callis, Ken Penttinen, Advait Shinde, Cody Carpenter, Annamaria Herrera, William McGraw, Bader AlGhamdi, Vaso, Melissa Briski, Joey Quek, Andrei Krishkevich, Rachel Bright, Alex S, Mayumi Maeda, Kathy & Tim Philip, Montather, Jirat, Eric Kitchen, Moritz Schmidt, Ian Dundore, Chris Peters, Sandra Aft, Steve Marshall
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1:07 - History of stat
2:31 - Definition of stat
4:22 - Proxy
5:20 - Two main types of stat
5:23 - Descriptive stat
7:33 - Inferential stat
9:53 - If stat were a superhero
10:01 - Importance of stat
10:33 - Continuation of importance of stat
10:17 - Comparison between descriptive and inferential stat
10:43 - Continuation of definition of stat
Thank you for timeline
A physicist, a chemist, and a statistician go hunting. They come upon a deer and the physicist takes a shot that misses 5 feet to the left. The chemist then takes a shot that misses 5 feet to the right. The statistician declares, "We got him!!"
The statistician get some food out of his bag because he knew the stats before coming and understand that a medium value is worthless on it's own, he compares it to the median and the quartile at the very least.
Dennis Zavada I don’t get it
I get the joke. But I don't like it. Also, how did the physicist miss? She couldn't calculate the trajectory of the bullet? These individuals are drunk
What's the reason for there being a physicist or chemist? They're basically not part of the joke. Bad Joke, Bad.
The statistician says, "two data points is too small a sample to have predictive value. Also, you guys are really bad at this."
"Statistics: when you don't know for sure, but doing nothing isn't an option" is going on a poster on my classroom wall, like, ASAP.
Put these ones up next to it.... 😉😜
"Statistics are like bikinis. What they reveal is suggestive, but what they conceal is vital"
"Don't use statistics as a drunken man uses lamp posts - for support rather than for illumination"
I would add, make the stats, but remember that life is not contained in it, so in the end, after taking a look a t the stats, throw them to trash and let your now more informed on the world head decide.
I just finished a summer statistics course. I thought it was going to be really difficult, but it was actually fun. I completely fell in love with statistics this summer. Don't let everyone get into your head about how much it sucks; it isn't true!
I’m halfway through my first year of a psychology and I can see this being endlessly helpful
A basic understanding of statistics is soooooo important. Most decisions in politics are made based on statistics. Or rather: should be made based on statistics. Please more of this! What a great course!
I'm majoring in physical therapy, but I like learning other things other than ana-physio because I would like to invest on the stock market one day, and be versatile compared to my colleagues, and statistics looks fun!
yes more Logical based decisions instead of the Ideological based ones of today. 😕
But should it really? Cause in theory, basing it in statistics is a great idea, but in pratice the actual studies are riddled with so many holes on a fundamental level that basing it on statistics often becomes a glorified way to throw dice at the table make a decision based on the roll
communists had for utopia to have a society basing his decision on pure logic. The goulags where a result as well as no hill or disabled in the cities (they were kept away from the other in dedicated houses in the middle of nowhere)
The majority of the big decisions cannot be based on statistic (go look up game theory, you can start by the prisoner's dilemma), most other should not.
Couldn't agree more! I'm trying to give lessons on how probability and statistics are used to draw conclusions from data and to make decisions (from a physicist's perspective). We have lectures on Bayes' Theorem, p-values, gaussian errors, lots of stuff.
BOX PLOTS, NORMAL DISTRIBUTION AND A PIE CHART OVER A HUGE GRID AS BACKGROUND DECORATION! You're doing it right.
i swear you guys know my class schedule
Why would anyone thumb these videos down? They're fantastic and make statistics interesting and easy to understand.
Finally Crash Course has Statistics series !!!!
I have been waiting forever!!!
Me too!!!
Statistically 50% of forever
High five!!!
I am going to eat junk food tonight to celebrate the inauguration of this series ~
Was sort of bound to happen sooner or later...
Above and Beyond Education: I knew that since Crash Course Computer Science came out !
So glad you're covering this! Got a whole module dedicated to this at uni every year! Thank you!
Hey! I love CrashCourse's content, but my wife is hard of hearing and really benefits from having captions. Is there a chance that you could upload the script to the video? We would both really appreciate it, and it would make a huge difference for the hard of hearing audience.
Here here. Just a heads up, the video is out of sync with the audio (in case you were finding it extra hard)
I just started my statistics module. This is insane.
Statistically it's not that insane.
Yeah true.
What are the chances
You mean "this are insane" not "this is insane" because data are, not data is. Depending on what you believe the definition of "is" are?!.
1. I spent more time reading the little blurbs on the intro sequence than I'd like to admit.
2. There's literally a waffle-related subreddit.
they made r/wafflemakers because of this
You don't start every new crash course by reading every blurb?
One does not simply not pause to read all the blurbs.
Omg
The Mongol as the logo for "exceptional waffles" refers to the inside joke "Mongolians are the exception"... This is genius.
I have just discovered this series and i can only say thank you. I started learning statistics last year and these videos give me a much wider view of this subject, which i really appreciate
Finally!
The lady with the tea wasn't just any lady! She was Dr Muriel Bristol, a scientist herself (she studied algae at the same research station where Fisher studied his plants).
I love these crash course series. sometimes I feel just a general overview of knowledge would suffice for my application and this is a great way to get it!
I'm so happy this came out when it did. I have to take statistics this semester and I've already started to fall behind. I'm so excited for the course! thank you!!
There are two types of people in the world:
Someone who searched this topic driven by school related things
Someone who really wanted to learn statistics
The background set design for this series is *really* fantastic...props to whoever is responsible for that. Adriene is doing a great job presenting, too.
I'm really excited for this series. For years I've hated statistics because I had a really boring stats lecturer at uni and I barely learnt anything, yet I know that statistics is really important. Hopefully I can learn so much more from Adriene!
I just noticed the box and whisker plot in the background! great set design, really looking forward to this series progressing
I've been waiting for Crash Course to do a series on statistics/data analysis for so long so it's good to see this is finally here! :D
Fantastic I love this video, I'm so looking forward to this statistics series!!!
said no one ever.
I agree with you my friends
“just like our eyes and ears filter out unnecessary stimuli just to give us the best, most useful stuff”
me, with adhd: o_O
I could’ve used this lesson about 4 yrs ago but I’ll definitely be more appreciative of stats
The description of inferential statistics is phenomenal- perfect for my 9th grade bio students. Thank you!
My college didn't have a statistics major, but I took every class offered at the time! Can't wait for this series
Love this video. I'm a psychology major, but I freaking LOVE statistics, probability, and all things mathematics related.
This is right on time. We're studying statistics at school right now.
“One death is a tragedy
1000 deaths is just a statistic” That Russian guy during WW2
Guess Who Am I how lamfo about American guy in Iraq 100,000 is just a number
Well Stalin was actually Georgian but yeah.
Ethan Arias What do you mean?
Complaining Qoheleth You get the point...
I just read three books on statistics and this video just reinforced everything with these delightful animations. God bless you guys.
Can't wait for the episode on Hypothesis Tests!
i love my mrs.lawton she’s my favorite teacher ever
This is my single most anticipated Crash Course series, wonderful first episode!
one of the best written, best presented introduction videos ever. It made me curious to learn about all of this!
Thank goodness Crash Course has a statistics playlist. This channel is the reason I passed Biology in the 12th grade lol
This is simply amazing. I’m just a high school student who was interested in what Statistics really was and you have done an astonishing job teaching us about it. I am looking forward to the rest of the series, and be sure to like all her videos!
My main hope is that there's at least one episode on Bayseian statistics
amen to that
They would have to at least cover Bayes' theorem
Veritasium have a great video on that topic.
Fakjbf - Bummer though, it sounded like the reverend isn’t invited (ergo the comment about dedication to Fisher’s branch)
YOOO This is exactly the series that I needed from CC. Stats are so useful yet so finicky.
This is an unbelievably important subject to cover, and I am so glad to see Crash Course covering it! Thank you so much for enriching our community!
Yes, I've been waiting so long for crash course statistics - can't wait!
Future Nursing student here. This is incredibly helpful
I'm way more excited for this than I thought I'd be.
Because it's kinda on topic - here are my favourite statistics (both are true, even if most people need a moment to understand that fact):
1) The vatican has two popes per square kilometer (or four, if you're counting living ex-popes).
2) Most people have more legs than the average person.
1. The Vatican is only half a square kilometre large (actually around 0.44 km², thus making it around 2,2727... popes/km², though for this fact, it's close enough).
2. If people haven't got two legs, they're more likely to have less legs than more (not to mention it's easier to lose than getting one) which shifts the averidge from 2 a bit towards to 1.
Where was this when I was in college and grad school?? So grateful for this series!!
I so love this video 😍 The way the ideas were arranged was so amazing 😉 Very helpful for my class in statistics.
My mayor is statistics and i'm so freaking excited ❤❤❤❤❤
Paula Rodriguez Sadiq khan is the major of London
Top meme
Technically she's not wrong, major and mayor have the same Latin root
Genetic fallacy. Technically, you're both wrong.
Good Luck.
I’m actually really looking forward to this series!!
One semester too late. :( Anyway, I am still so glad that this series is finally being made!
The set is insane with the normal distribution curve shelf, box and whisker plots on the left, and pie chart on the right.
Yes it's beautiful!
There's also a minecraft creeper head there
I’m starting college this fall and I have to take a statistics course. This series will hopefully help me out!
I want that room setup!
I have an MBA and did my minor in International Marketing and let me tell you: Marketers do love statistics. SO MUCH statistics and coin tossing.
It's actually very interesting and I apply it every day still. It changes your way of thinking. I'm constantly thinking in questions, hypothesis, and possibilities. Also the correlation and causation between them.
It's a little bit exausting sometimes though. Am I the only one??
Olympias I'm yet to meet a stats master or an MBA who I'd trust with $1000 at a rouelette table if it was my money.
Same here, Mario Party got me falling in love with statistics, currently looking to be great at the art. Completly changed how I see the world
I'm thinking of majoring in marketing with a minor in graphic design or international business but idk if marketing is a good major to pursue? While I be financially stable with a marketing career?? Anyone have any tips or experiences they care to share?
@@lovelyicy6395 it's upto you what you love doing...
Thank you!!! Perfect timing for my MBA program.
I like the box-and-whisker plots on the wall.
I'm taking a statistics module this semester. This could not have been better timed I'm so happy!!!
Thank you for thsi awesome intorduction! I'm looking forward to this series!
I’m loving the idea of this series! Can’t release more soon enough
Statistics, like astronomy, is something I have a pretty good handle on. I'm excited for this because, like the Astronomy series, I think you're about to teach me quite a few things I don't know I don't know.
I started taking Intro to Statistics Monday. Perfect timing!! :D
I've been waiting for a CC series on statistics for a while. At last its here!
This was actually really interesting! Looking forward to more!
I am taking Statistics right now in College... again... lol But I love it. It covers so much in life.
You lucky person. Mine DEFINITELY doesn't. I wish math was more engaging...
Same here! I hope we both do well!
Ahhh finally! Gonna need mechanics too for these A-level exams I have this year ❤️
This video does a better job than most by emphasizing that the framework you use to answer a given question in statistics depends on the question. If you work in social sciences, for instance, your goal typically is to clarify a question so that it becomes answerable given the assets available and to recommend a course of action. The challenges are in the realm of logistics, human resources, and general critical thinking. Most of the time the relevant statistical methods needed are pretty basic, well understood, and automated. Unfortunately, intro to statistics classes often present the student with a litany of statistical methods "as if" that magically results in effective implementation.
YISSSSSSSSS!!! Finally get to review stats! I doubt you will explain it quite as well as my prof did, BUT for a refresher of these topics, I absolutely LOVE crash course!!
This is such a great description of Statistics! I love CrashCourse!!!
I've read Nassim Taleb's "Dark Swan" recently and found it interesting - it's a book about uncertainty and the psychology of knowlege and decision making. It's central selling point: Statisticians (and especially economists) use Gaussian statistics (the bell curve, standard deviation) too much as most social questions are scalable: Black Swans, huge deviations form the norm that we can't predict have big impacts (think 9/11, 2008 financial crisis. The 1980 banking crisis destroyed the whole of the banks' profits IN HISTORY in a single incident).
Thought experiment: a.) The average person is 6'5" tall. What's the most likely distribution of hight? Answer: Around 6'5", with extremes more and more unlikely, as hight isn't scalable.
b.) Two people in the room have a total net income of 1 Mio USD. What's the most likely distribution of wealth? Answer: 50k USD and 950k USD. Wealth doesn't distribute around a mean, the net worth of the 2000 billionaires is 7,5 Trillion. 8 of them are richer than the world's poorest half. Wealth is scalable.
The proposed problem with most social sciences: their models often confuse b.) with a.).
These examples are very insightful. I love this video, I feel like even one who has no idea what statistics is, will understand wayyy more
wow!!! never knew statistics was this interesting and useful. when i chose statistics as one of my subjects for AS level, i really wasn't looking forward to it. i just chose it because it "looked easy" to me plus it was a perfect combination for my business course but then i realized that it's all concerning probability so i gave up trying cause i really hate probability. now though, i have a new hope, i have the feeling that i didnt make any mistake by choosing this course, thanks for enlightening me. i really love it now. i still wish though that i had you as my teacher.
That was great! i had saved this playlist months ago,
tried to interact myself with some courses !
But now, by this introductory first video i've got pretty sure i'll finish this playlist soon.
And will got a lot of knowledge ! Good way of teaching.
Kudos for the bell curve bookshelf in the backround. Nice Easter egg ;-)
I HAVE A STATS FINAL TOMORROW AND I WAS NEEDING THIS ALL DAY
Just in time, as I am trying to decide whether I should pursue a career in Data Science which, to my knowledge, is kind of like the next step in statistics :)
Really excited for the rest of the series. Thank you.
Glad to have you back as host! I'm excited to learn about this with you.
man this chanel is gold
I am only learning about statistics and I’m looking forward to this statistic series. ITS SO FUN AND COOL!!
Another great topic for a video! Thanks so much for continuing to make great content!
I'm in stats right now so if you could publish the whole course asap that would be awesome. For real though really excited for this CC.
How convinient, eventhough I took statistics classes in college that was a while ago then I decided to learn statistics again by myself in order to apply for a new and better job and suddenly cha cha a very cool introductory video from one of my favorite youtube chanels, could it be some kind of signal ?? perhaps statistics will help me to find it out.
Thank you so much CrashCourse
I loved this video! Great job. Thank you!
I used inferential statistics in my previous job as a quality control manager, we couldn’t sample all parts made but took a sample based on the quantity of parts made.
Thank you, Ms. Hill. Your explanation is very clear and useful. Keep the good job!
Where was this when I needed it last semester?! Oh well, better late than never!
Thanks CrashCourse.
I am learning statistics and you have made it too simple. Thank you.
This is just exactly how I want to be taught this!
Milk added last is most definitely the best - I’m having one now!
Oh my god, this was so awesome! Can you guys do a series on music production or sound producing or something too???
I was very curious if she guessed the correct tea cups
Please do a week on inferential statistics and measuring statistical significance. I'm afraid to admit this publicly, but I am a psychology teacher, and I suffer from major math anxiety, so when we get into psychological stats, I can use all the help I can get!! Was hoping that Hank would a stats lesson as part of "Crash Course Psychology," so this is the next chance to help me (and more importantly my students), get a better grip!
Take a smartie-vite every time she says statistics.
I already loved statistics. Now I'm in love!
Thank you!!!!
I'm so glad this whole channel exists.
I've been waiting for this!
When I saw the first episode, I know this is the best Crash Course I've ever seen
Ohhhh God!!!! Please keep going with the series I'm about to start my Development Economic studies!!!!! Thank you!!!!