Statistics 101: Point Estimators
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- เผยแพร่เมื่อ 28 ม.ค. 2013
- Statistics 101: Point Estimators.
In this video, we dive into the beginning of inferential statistics; the ability to estimate population parameters using sample data. The sample mean, sample standard deviation, etc. are point estimators for the population mean and standard deviation. But they are not perfect. We use a simple example in statistical quality control to explore this topic. Enjoy!
My playlist table of contents, Video Companion Guide PDF documents, and file downloads can be found on my website: www.bcfoltz.com
watching this video during a mental breakdown (BECAUSE MY EXAMS ARE SO SOON AND I KNOW NOTHING), so i wanna thank you for that intro! really put a smile on my face
Hello
Hope you aced the exams
Same
To be honest...that introduction made me feel better. I AM SO LOST...and have broken down multiple times from frustration.
Killer introduction
Actually cried
@@teodustus LOL, samsies
I lowkey party danced lol
edit: was referring to the intro music,
I love the words after listening to the actual intro
Out here literally crying from that intro. My final is next Tuesday and I am scared I won't pass. Thanks for your support!
You can do it!🙏🤘 Take care if yourself, breaks, rest, nutrition, friends and family, and something that makes you laugh a lot!
@@BrandonFoltz omg a year later im watching this video and i have my exams next week tuesday.!
Same here, so lucky I found this channel
When your class is also a motivation session. Love it!
Brandon, so considerate of you to give us such a pleasant introduction and conclusion. It lifted my spirits up for the statistics final coming up. And your explanation was incredible, it cleared up most of the confusion I had so far with the basics, thank you so much!! Bless your soul
Honestly came here because I have a midterm in two days and don't know what is happening in the class. Your intro made me cry. Thank you so much, it's nice to hear that from somebody
I love how EVERYONE appreciated that intro, it really made my day. Thanks dude!
Hi Brandon, I'd like to genuinely thank you for the production of your videos. Though I try to seek help and work diligently through my class, Statistics can be really challenging and frustrating. Your comments about our ability and efforts are kind, and I truly appreciate them. Thank you again, and know your videos and kind words motivate me to continue to try!
Thanks Judith! Thank you for taking the time to spend your precious time on one of my videos. The thanks is all mine. All the best, B.
That message at the beginning and the end of this video really made me smile, thank you for your kind words.
I'm so grateful to have found your playlists. You are the first person who has ever been able to explain these concepts to me in a way that makes sense. Thank you.
I watched many videos about many subjects ( cause I am a pharmacy student) but your intro make me cry ... cause only 5% of people can understand other feelings , finally I found a man among this 5% thank u 💓
Thank you so much for your videos. They literally saved me. I couldn't understand my classes at all during 3 months, and I managed to pass my exams after watching your videos. Thank you for your great explanations, patience and kindness!
I like how calm you are when explaining THANK YOU
Thank you for that positive intro, I definitely appreciate (and need) the encouragement!
You are welcome my friend. Hang in there. You got this. 💪🤘👍
The beginning really made me stress a little less. thank you
Brandon, these videos are so great !!! You have saved me. I'm in Honor's Statistics at university, but I've NEVER had stats before so it has been very confusing trying to learn all of the terms and formulas. I didn't know when I registered for the class it would be so difficult. I'm a 98 and 99 math kind of gal, but this stuff is tough. With your help, I finally get it ! Thank you a million times over for the way you structure your videos. You are a God send.
sherri Awesome! Keep up the hard work. Perseverance wins out! - B
This entire style of video tutorial is so wholesome and encouraging. I am so impressed. Thank you thank you thank you Brandon :)
I listened to just the intro and I'm already so into this thanks for that positivity, I really needed it right now
I feel better after hearing the intro , honestly I've been struggling to my statistic sub. In school , and I just wanted to improve myself and my grades this coming finals
I love how you encourage your viewers to continue what they’re doing, keep spreading positivity, and the positivity that you’ve given to others might come back to you more that you’ve anticipated, Godbless Mr. ❤️
I wish my father can be half as inspiring and supportive as you Mr.Brandon. Heck, I'd be so grateful even if he posses 1-fourth of that positivity.
Anyway, tks alot. Eventhough many people have talked about how great your intro is but I still wanna show my gratitude. Keep up the good work
My god, I needed that intro right now... Uncanny timing. Thanks for the positivity.
Bro that intro almost brought me to tears man. Thank you so much 😭😭😭
oh Brandon you are amazing. you have no idea how many students you have helped
I am in a graduate statistics course and this was a very clear explanation of what my textbook didn't explain well.
I've never hit like on a video this fast. Killer intro dude. You just put a smile on my face.
Awh the beginning is the sweetest thing! I needed that, thank you so much for that
The intro truly lifted me up thanks man cheers!!!
Bradon, thank you very much! It is very helpful! A lot of people like me know how to calculate numbers using formula. But they like me don't know why they are doing it. Your videos filled the gap. Amazing! Please make more videos. I plan to watch all of your video once I have time.
this intro is so wholesome, I really needed this today. Thanks dude!
Thanks for the Intro man, I really needed it.
Hey, man. Thank you for your encouraging words! I had almost begun to lose hope because I couldn't understand the textbook. This video cleared things up and made point estimation seem more simple. You have a new subscriber. :)
Great video! what it took me more than an hour to barely understand was explained very well in less than 15 mins.
Hi Aabi! The sampling distribution is a theoretical collection of many point estimators, in this case many sample means (a point estimator). So we could take the average height of 30 adult men and get a sample mean (point estimator for the entire population of men). Repeat (another point estimator). Repeat. Repeat. If we put all those means into their own distribution, we have the sampling distribution.
okay the little speech at the beginning made my day!! thank you so much, amazing video.
I needed to hear that intro a few hours ago. I felt like I wanted to cry lol
Man, that intro really hit me as I'm cramming for my midterm tomorrow morning
I was about to give up cause I feel dumb, but that intro changed My mind, thank you
I haven't even finished watching the video and I love it!! Great motivational speach at the beginning!!! Can't wait to finally get back on track!!! I've been looking for some one like you to explain statistics thoroughly!!
This is the best video I've seen regarding point estimation. Thanks for making it understandable with a very detailed, real world example.
If is a single population then the rule of thumb is a sample size between 30 and 100; that is all you need due to diminishing returns of adding more. Beyond that, I think about the smallest way I might slice my data. If I need to conduct analysis on: 1) women, 2)between 30-39 years old, 3) non-smokers, 4) from Bristol, England, then I need to sample large enough to get at least 30 meeting that characteristic. There is no real loss in an overly large sample beyond time and money.
Just want to let you know this video really helped me. Keep up the good work!
Your comments about our ability and efforts are kind, and I truly appreciate them. Thank you again, and know your videos and kind words motivate me to continue to try!
dude thank you so much for that intro i almost cried i love you
thank you for the beginning I didn't know I need that until I heard it.
Your videos are awesome. You make easier for me to grasp these concepts with the simple examples. Thank you! Keep doing the videos!
Aw your pep talk is so great, thank you!
Amazing introduction. It made me finish the video 'till the end
Wow this video is 7 years old and you are still uploading videos? Awesome job! You gained a subscriber :)
Can you put a road map of what to watch next at the end of each video. Thank you so much
Thank you for the positive encouragement in the beginning of the video!!!!!!!!!
I have been learning from your videos since lockdown love all ov ur videos dude keep on doing it
That intro was needed man. Thank you.
You are very welcome. Keep going!
Best stats videos, thanks Brandon
Thank you, this is fantastic, much clearer than my uni lectures!
So far, you are the best!
Loved the way you started..Clear explanations slowly as everyone would expect. I would like you to put what video to see next and prerequisite videos if any, so that we can the lessons the way it has to be learnt for better understanding. Enjoyed your video..Great work.
may Allah guide you man .. you are a good person .. thanks a lot
how sweet of you to add some encouragement before getting started! great video, very concise :)
You Sir are the future of educational system. Keep going Brandon !!!
Brandon - When you will release your book on stats? So that we can revise faster and practice!! Your channel is the best.
These videos are awesome, and I have recommended them to others in my class. One small piece of feedback is that I'd like to see how to understand and calculate sample proportion (unless I'm missing something and it went over my head). But keep on doing the good work!
I love your video. Very easy to follow. Thanks for taking the time.
wow! thank you for that intro! what a nice and most needed surprise!
This helped me with my class!! Keep up the good work
Your explanations are really helpful! Really appreciate your efforts and help, thank you very much Brandon! :) :)
Thank you very much, Brandon. Me and my groupmates enjoyed your videos. They were helpful in our preparation for the exam)
Hello from Ukraine!
The video really helped me with my course :)) thank you!!!
That intro just lifted my spirits
Thank you for the motivation. :) Definitely needed it today.
Regarding the Highway Paving samples, thank you for clarifying that the term sample is all 15 specimens and not the individual measurements/specimens itself.
Your videos are very helpful for conceptual understand!!
you are such a great help!! sending thanks from korea ;)!!
Thanks for the video, trying to do a project and your video really helped
Thank you very much for your kind effort.
Great video. Thanks for posting.
Awesome work! Thanks a lot!
therapy and education in one DAM LOVE IT
Excellent videos!!! Great explanation!
Great stuff, life saver, big thank you
Videos are awesome... I just love the way you explain.... So perfect.....
Great video. Thanks a lot Brandon!
you are a great motivator and teacher...:)
Great videos!!! Thank you so much Brandon.
Wonderful Lecture. Thank you..
THANK YOU FOR THIS SUPER HELPFUL VIDEO!! I FINALLY UNDERSTAND THE TOPIC!! THANK YOU SO MUCH HUHU I DID NOT FAIL MATH BECAUSE OF THIS THANK YOUUU
Thank you Brandon.
Thank you Brandon for the constructive intro to your video -I've subscribed
Incredible video. Thank you very much
Fantastic video! It really helped me understand the concept better. Thanks
thank you so much for this! the explanation was just soo soo clear! :)
In love with your videos..you are great gentleman...Thank you Brandon
Thanks for helping me . it's really helpful.
Quite informative lesson I gained a lot
Thanks man , really helpful !
I barely ever subscribe but had to today! Thank you
I followed you as soon as I heard the intro lol. Nice hook
You're so nice