Sampling: Simple Random, Convenience, systematic, cluster, stratified - Statistics Help

This video describes five common methods of sampling in data collection. Each has a helpful diagrammatic representation.
0:00 Introduction
0:15 Definition of a sample and population
0:45 Criteria - unbiased, representative
1:09 Sampling error
1:36 Simple random sampling
2:23 Convenience sample
2:55 Systematic sampling
3:26 Cluster sampling
3:59 Stratified sampling
4:44 Choosing a sampling method
A useful companion video explains what sampling error is: • Sampling error and var...
See creativemaths.... for all of Dr Nic's videos organised by topic.
You might like to read my blog:
creativemaths....
#DrNicStats #Statistics

[@dunkyourdonuts2282]

I'm taking a distance course with a entry level stat paper and my ADHD brain just CANNOT concentrate on the 30 min recorded lectures. I just find my eyes drooping and my brain turning off with boredom, so THANK YOU, this pretty much covered one whole lecture and I kept up on 1.5x speed.

[@leon-y]

2 days of lectures combined into 5 mins. this was really helpful

[@majestic7768]

They get paid for hours, not minutes. Money is the biggest obstacle to real progress.

[@crystinamarie1]

Right???

[@eduwisdom3328]

kzbin.info/www/bejne/qXauZ6NnobZ7bdk

[@fakuridesne]

thanks 1 hour lecture, simplified into 5 min video and understand better

[@DrNic]

Thank you. I spent a lot of time working out pictures that would help to explain the concepts.

[@ralphcabiling1314]

You could learn a thing or two form punctations

[@DrNic]

That's great to hear. I put a lot of thought into having good visuals.

[@jwitterLyfeStyle]

Thank you

[@nalinvimukthi7680]

Thanks in my ❤

[@DrNic]

I think you should do your own homework. Tell you what - you tell me what you think and I'll provide feedback.

[@r_bau]

Came here for sampling techniques to practice my chops, came out learning about statistics. Brilliant.

[@tina89bgd]

Dear Dr. Nic, I am a non-statistical person listening to the statistical online course. Since I found your channel and a website, everything seems much easier for me. Thank you.

[@DrNic]

Thanks for sharing! It is so good to know that I am helping.

[@tophertodd2366]

cluster @ 3:24, stratified @ 4:00, and great explanation btw!

[@AnhNguyen-di8xp]

Just want to drop a "thank you". You have no idea how much these mean to me. Simply saying "thank you" is just never enough. But..... thank you, I really appreciate it.

[@DrNic]

You are so welcome

[@skomura]

THANK YOU. I misssed a day in my lecture, and I was able to recap it in less than 5 minutes.

[@LayanQasem-mq7gn]

anyone have stats after tmrw 😜😜

[@juvyy679]

😂😂

[@nick8224]

No Hahahahah

[@Abbas.Ladonni]

Perfect, Quick, and comprehensive. Thank you Dr.Nik

[@DrNic]

You're very welcome! I put a lot of thought into this so it's great to be appreciated.

[@eduwisdom3328]

kzbin.info/www/bejne/qXauZ6NnobZ7bdk

[@TBC1599]

Awesome explanation... much easier to understand compared to the written paragraphs we were given. Thank you!

[@eduwisdom3328]

kzbin.info/www/bejne/qXauZ6NnobZ7bdk

[@Sats33]

Pictures and examples help a lot in understanding. Going through your videos its simply beautiful... U are very brilliant in your teaching..

[@sathyavel8046]

explanations are amazing to the point and the videos are v good. One of the best stats training videos in KZbin

[@NithilanDhandapani]

You are a real good teacher. Thank you very much

[@DrNic]

You are welcome!

[@Sincerely_Ibrahim]

Convenience sampling...for a quick and cheap poll:) Great video. Your learning center is also brilliant.

[@mydology1089]

30 slides in 5 minutes. anxiety lowered 100 times. May God Bless you

[@DrNic]

I am happy I can reduce your anxiety.

[@user-gi3fb7gi9m]

You make it clear to me in less than 8 seconds.

[@muaythai2005]

Thank you for posting such a valuable resource.

[@koranatsaengwat1217]

Thanks you so much. I found this easier to understand than the one I read from my lecture. :)

[@DrNic]

All the sampling methods listed, except for convenience are random. A simple random sample is one form of random sample, and is arguably the ideal, as each observation is chosen completely independently of all the others.

[@darksidegaming9682]

Double, multi stage?

[@DrNic]

@@darksidegaming9682 I presume you are asking if the two methods you used are random or not? If each observation has the same probability of being chosen, then the method is classed as random.

[@darksidegaming9682]

@@DrNic ty and waiting for ur new videos

[@esthercohen8193]

I find these series of videos extremely easy to understand and helpful. Thank you

[@ChristeenLim]

"Learning and teaching statistics is surprisingly interesting with Dr Nic." true. Thanks for this!

[@mastermandarin師父中文]

Thank you. This helped better understand different sampling types.

[@DrNic]

Glad it was helpful!

[@baekseulhyun6762]

Watched the useful ad for this guy😊😊 kudos to you for my report coming soon!

[@capitalm417]

Best video I've seen explaining this subject. Currently working on a big statistics project!

[@DrNic]

Glad it was helpful!

[@munisapulatova5490]

This is amazing! Thank you so much for the effort you put into this video, rly appreciate it:))

[@DrNic]

Glad you liked it!

[@DrNic]

You should take a look at another video on the playlist from the UCMSCI channel called "Variation - why statistical tests are needed". Pretty much sampling helps us to find out information about a population when it isn't possible to collect information on the whole population.

[@knayacoco2624]

This was really helpful thank you.

[@alexaj.4562]

Hahaaaa have a quiz on this in three hours and honestly this has helped me more than reading that damn text book... thank you 👍🏾

[@maherali8351]

thanks mam for such a convieniant lecture..its really healpfull...

[@mayurmiths]

Simply Amazinggg.............. Now I know Smapling on tips.... Thanks a lot, for such a Quality Video..........

[@ladym7852]

Thank you , that was very well explained and put together.

[@DrNic]

Glad it was helpful!

[@bryllqurtino8406]

Thanks to your discussion, was so amazing, actually I knew it just now. Thanks, creates more happy days to understanding that even just so hard to learn but we will can.

[@DrNic]

Happy to hear that! I think you will find many of my videos will help you.

[@ariffaimanbinazminmustam9001]

Thank you so much for this video because it helps me to know better about types of sampling techniques

[@DrNic]

Glad it was helpful!

[@thiisnotanex]

never had such an easy homework( QA team=best team)

[@danielbrandonmukbang52]

Thank you so much, this helped me a lot because i'll report this on my classmates later.

[@DrNic]

Excellent

[@idilyorgancilar6594]

Wowww!! Finally a great instructional video!!! and comes with the coolest accent!!

[@DrNic]

Thank you. I do my best. ;)

[@alitfaily4904]

Thank you!! This was really helpful you saved me before the exams!❤

[@DrNic]

I'm so glad! I hope the exams go well.

[@eduwisdom3328]

kzbin.info/www/bejne/qXauZ6NnobZ7bdk

[@gravy473]

I finally got it, thanks for the video.

[@LIONFOX09]

MISS IVERS IS THE BEST TEAHER

[@DrNic]

Good for her

[@lavenderdaze]

This is really easy to understand statistics.

[@MrZain07]

Thanks a lot, very simple and clear :)

[@kayyt29]

this is amazing the best i have seen yet

[@DrNic]

Thanks - I put a lot of work in

[@DrNic]

You are very welcome!

[@8bitapples]

I really love this video, understood so well. I dont normally leave comments

[@DrNic]

Thanks - I feel the compliment

[@aakhan8080]

you make it sound so easily that you nailed it maem

[@billyr.d.444]

Just what I need for my paper. Thanks!

[@singleorigin3194]

Shit thought this will help me with my music production, feel like a knucklehead now. But keep dropping knowledge Dr Nic. Your videos straight fire. You good.

[@DrNic]

THanks - you are not the first to think that.

[@humsopiseth4105]

It's very good if all of your videos have subtitle

[@jenniferrsn]

Thank you for this video. Very helpful

[@dr.nippunbhamrah8187]

Very helpful. Needed to understand for community medicine.👍

[@palanisamyr6464]

Have a nice examples Mam thank you

[@DrNic]

It's my pleasure

[@disanimukasa-wilson1938]

Thank you so much Dr. Nic. Makes so much sense

[@mellbenito4984]

Thank you I now understand the different between each method!

[@DrNic]

That is good to hear. I put a lot of thinking into this, including the representations .

[@fernandomora6447]

Thank you DR. your video was clear and easy to follow.

[@DrNic]

That’s what I aim for! :)

[@hlengekile]

Thank u I think i'm now clear with the stratified sampling

[@toweramlenga7062]

Thank you for your lecture you really simplified my work

[@DrNic]

You are welcome!

[@samhume6283]

This is brilliant! And memorable! Love the funny illustrations too.

[@DrNic]

Thank you. It took a lot of thinking to come up with the representations. Glad it helps.

[@anilmaximlobo7288]

Thanks so much Dr Nic ! Could you please post a video on sample size calculation .

[@choukribrahimhammache7743]

First of all, thank you very much for this fruitful video, it is short but it is also a good guide to sampling. Secondly, god! I'm in love with your voice hhhhhhh

[@user-hg1gj6gq7i]

watching this a day before exam :)

[@DrNic]

You are not alone! Hope it went well.

[@H4CK41D]

I never knew representativeness was a word! haha it sounds so funny. Great video, thanks.

[@clueannwilliams4858]

3hrs of lectures combined into 5 mins. this was really helpful. 4 real

[@DrNic]

Happy to be of help

[@thembekileblessmore]

I have a quiz in one hour lol. this was helpful

[@DrNic]

Glad to hear it - I hope the quiz went well.

[@thembekileblessmore]

@@DrNic Yes it did, Thank you

[@CaseyChronicle]

YOOOO this vid was GREAT keep em coming!:)

[@toasterforsale5069]

Drink me

[@chloelee8631]

Clorox Bleach LOL

[@giselegiram]

Nice video. Very useful

[@aminezaidi4089]

this is the last chapter in my book and my final in less than 3 hours.. much thanks doc!

[@chandansingh7217]

Awesome video.. Best video for sampling

[@rickleow736]

I am studying for my Business Statistics module. Hope I can pass.

[@DrNic]

Good luck! May the odds be ever in your favour.

[@octane7774]

This helped, you deserve a sub

[@Johneysteel]

This is really good, thanks for sharing!

[@manfredvonkarma2226]

The dude in the beginning looks just like edgeworth lmao, great video btw

[@DrNic]

Thanks 😅

[@toomuchjen]

Exactly what I needed today. Thank you!

[@RobertDeLoneWolf]

Thank you so much. I have final tomorrow but never open my book lol.

[@arki3134]

lol

[@mostafael-sayed120]

thanks very much i would like to know how to solve such types of problem? The following absorbance data at wavelength 543 nm were obtained for a series of standard solutions containing nitrite (NO2 ) using a colorimetric method: A ¼0 (blank), A ¼0.220 (5 mM), A ¼0.41 (10 mM), A ¼0.59 (15 mM), A ¼0.80 (20 mM). Using Excel (a) to plot the calibration curve, and (b) to determine the calibration equation and the regression coefficient (R 2 ).

[@David-ku7mt]

Great explanation, thank you!

[@DrNic]

Glad to hear it.

[@GothicDarkhellrazor]

The blonde character looks like Mello from Death Note XD he even likes chocolate. I Think teach is getting her anime on ^ ^ Thanks for the vid it helped big time almost ready for the exam.

[@farzanehrasti]

Thank you! Fabulous explanation!

[@tonyahudson-pruitt1119]

Thank you, this explanation was perfect!

[@DrNic]

Thanks - pleased to be of help. As you can imagine, I put a lot of thought into these videos, so your feedback is much appreciated.

[@user-qe7qi2km6z]

thank you so much! this really helped me with my math lesson!

[@DrNic]

I'm so glad!

[@sumantadey9274]

Madam, thank you very much.

[@DrNic]

You are most welcome

[@ashc6642]

I HATE MATH SO MUCH BUT THIS VIDEO WAS GREAT THANK YOU AND THANKS MR NGUYEN FOR RECOMMENDING IT :) ALSO COVID 19 SUCKS

[@DrNic]

I'm so glad I can help you. Yes Covid 19 sucks. I am very fortunate to live in New Zealand where life is pretty normal except for no tourists, but I realise it is pretty bad in many other countries.

[@bernardgoliama3978]

Simple and well understood, Thanks

[@aonmay8947]

what an awesome explanation!

[@DrNic]

Glad you liked it

[@ashkew7404]

This is great. Thanks so much!

[@jcorbett4217]

This accent is so cool. Where is this person from?

[@sargsinclair]

+Janie Corbett New Zealand

[@WhizTV]

Nick Sinclair that’s English

[@user-bm5gf2pe7e]

WhizTV What do you mean? J Corbett just asked where the person was from.

[@WhizTV]

Argent Bookworm English accent

[@user-bm5gf2pe7e]

WhizTV I know what you meant by English I mean why did you say that when the original commenter asked where the person of the voice over was from?

[@flgirl3123]

I LOVED your video. It helped so much.

[@DrNic]

Thanks. It is so nice to hear this.

[@flgirl3123]

@@DrNic you're welcome

[@entrluzrnaam]

Great video

[@janetolujimi4388]

Thanks it was very helpful.

[@not1but2and37]

I love listening to your voice.

[@DrNic]

That’s nice. Some people hate my accent. So thank you.

[@not1but2and37]

@@DrNic Really? Your accent is actually beautiful. That's the part I originally wanted to mention about "love" your voice. I also wanted to say I love your brain, but it sounds odd. Thank you for video lessons. I'm learning a lot. I should have stayed awake in college.

[@abdulrazzaq9726]

General request who want to share this knowledge with common communities of world.

[@jamesbryan1005]

thank you for this idea, i appreciated

[@azar8538]

Thanks you very much.

[@maebernabe5757]

Probability Sampling -Simple Random Sampling -Systematic Sampling -Cluster Sampling -Stratified Sampling -Multi-stage Sampling Is this correct or not?

[@DrNic]

If you are asking if those sampling methods are classed as probability sampling methods, then yes, they all can be, so long as they are well administered.

[@khalidkhan7209]

after watching this i like that dr behind your name tnx

[@swethakutty9873]

Great and easy to understand... Will u post about d quasi random sampling??

[@DrNic]

Thanks. This is not a term I am familiar with. I will look into it. I tend to stick to the most usual concepts and techniques as they are the ones most people have trouble with.

[@claudejrtemokang6185]

Well explained, thank you

[@penguindiepiebuscus]

Really good video!

[@penguindiepiebuscus]

+Clorox Bleach no thanks