Quartiles, Boxplots, Outliers

Рет қаралды 174,675

MathJaxx

Күн бұрын

How to find quartiles, create a boxplot, and test for outliers.

Пікірлер: 93

@iloveeveryone8611 8 жыл бұрын

That random dog howl was an interesting addition to the tutorial.

@ericphan8806 3 жыл бұрын

who said it was a dog?

@sunzalea3257 3 жыл бұрын

@@ericphan8806 the lady in the video

@valanor 9 жыл бұрын

that dog howl played a perfect role for me to grasp the concept of box plots hence it was very essential

@shreeyanshshahi5064 4 жыл бұрын

your dog howling freaked me out....................nice tutorial helped me a lot....thanku

@shaunmcknight7354 8 жыл бұрын

Holy crap I was falling asleep watching this and your dog howled! I thought the world was ending.

@PerfectHilton 7 жыл бұрын

LMFAO!! That was hilarious....

@ericphan8806 3 жыл бұрын

who said it was a dog

@lee.beknowin 2 жыл бұрын

this was the easiest video I've ever experienced. Keep up the awesome work!!!

@KhaledTheSaudiHawkII 9 жыл бұрын

You're one of the best things america has ever produced

@noUGames 5 жыл бұрын

lol I was watching this in a quite library & started laughing out loud at that dog segment, awkward

@heezoibeid 5 жыл бұрын

Thank you so much! excellent video

@janviergalle 9 жыл бұрын

I enjoy this video very much. You sure prepared your lecture so well and presented it step by step making it so simple to understand. Thank you much !!

@mohammedalshen3147 4 жыл бұрын

Lovely video. Thanks. Got what i wanted after a long search!.

@saswatabhattacharya5187 5 жыл бұрын

Very clearly explained. Concepts are crystal clear. Thanks a lot.

@smithmarta 10 жыл бұрын

Excellent video!

@swarnabhagrawal9211 6 жыл бұрын

Thanks a lot for such a concise and clear info on quartiles , really helped me a lot :)

@atakojackylucky7923 4 жыл бұрын

thank you very much may god bless you

@peppermint381 4 жыл бұрын

simple and to the point, thank you :)

@hoseahphilan8559 6 жыл бұрын

Well explained. Clear and to the point Prof. I wish you could also post a lecture on Dixon Q-test, will really appreciate.

@leighlinaga3629 5 жыл бұрын

Thank you for your lesson!

@Cmac.9411 2 жыл бұрын

4:55 that was amazing

@jeffreygreig3336 5 жыл бұрын

Thank you so much! This was really helpful, and helped prepare me for my math test!

@quangtungpham4204 8 жыл бұрын

Thank so much MathJaxx. i learnt a new way to count Q1 and Q3

@Romailk1 7 жыл бұрын

what a perfect explaination. really helped me understand it. thankyou. 👌

@cyrillehounvio7638 6 жыл бұрын

Excellent video

@waltarman2569 6 жыл бұрын

Thank you great helpful video!

@khoshalrahimi 7 жыл бұрын

thank u very much you have done a brief explanation and this video solved all my confusion about this topic keep it up may allah bless you.

@zakkennedy1173 10 жыл бұрын

THANK YOU! That helped so much you don't even know.

@jasminekhattra4951 5 жыл бұрын

Lol the dog was the best part

@nikhil4sharma 6 жыл бұрын

4:55 when the EARTH STOOD STILL

@EricWZ 6 жыл бұрын

Thanks this helped a lot. Had no idea what an outlier was because my professor forgot to go over it with us, and then gave us an assignment on it. So i resorted to youtube to teach me lol.

@sheenajohnson5024 2 жыл бұрын

Very nice explanation ma'am.Keep posting such videos. Simple and clear explanation 👌

@Rezayath 9 жыл бұрын

Thank you so much

@augustayarteh7524 5 жыл бұрын

Aw this teaching is good for me I needed It so bad for my next exam.

@ModestyisbeautifuL643 8 жыл бұрын

great video

@mtinbayram7179 Жыл бұрын

Year 2023 but still best

@missawesome8244 4 жыл бұрын

The dog carried the video 😌

@shahrajm 8 жыл бұрын

good and concise to refresh concepts.. :)

@paristruman676 5 жыл бұрын

You pooted, then the dog howled. You didnt think that anyone heard it? Well I did. Great video too.

@threat_zm7197 Жыл бұрын

Cheers mayo 🙌

@innocentsoul6352 8 жыл бұрын

amazing video really its help me alot

@gehanharbi5140 10 жыл бұрын

Really useful thanks

@docniemo4713 9 жыл бұрын

Great!

@amyamonet1366 5 жыл бұрын

Omgg thank u so much this is so helpful!!

@muhammadmesum2846 7 жыл бұрын

Thanks, means a lot...

@israrkhancil 9 жыл бұрын

it is very informative and descriptive teaching on Box plot, Quartiles and Outliers study

@7Ties 5 жыл бұрын

Dog: OOOOOOOOOOOOOOOO Everyone: Lol thats funny😂 Me: IM TRYING TO LEARN HERE DUDE!😡😡😡😡😂😂

@cupcakeoly122 7 жыл бұрын

GO ON 4:55 that's when it howls

@harishbabuk.s4344 5 жыл бұрын

thats as awesome explanation...

@hsankram1637 4 жыл бұрын

very nice, thants

@NVAKADATIRUMALARAO 5 жыл бұрын

awesome

@narasimhapuvalla3211 7 жыл бұрын

thank you so much.... why we choose 1.5 in finding outliers

@KenechukwuEzekwem 9 жыл бұрын

Thanks

@talsiyabi93 9 жыл бұрын

Thnx ❤

@singh1441 6 жыл бұрын

Your alarm was really annoying😂😂😂. By the way I find your explanation very helpful. Thanks. Love from india

@jagadishkatam 8 жыл бұрын

The video is very helpful. thank you. I have a question about the max value, in general per the video the max value is 50, but when the max value becomes the outlier then what will be the max value where the whisker will be plotted. Because 50 is outlier, does it mean any value near but less than or equal to 36.5 becomes the max value.

@jaxx600 8 жыл бұрын

+Jagadish Katam Thank you for your question. In the example you referenced, the maximum value, 50, turned out to be an outlier. However, it is still the maximum value of the data set and will be the end point of the right whisker in the boxplot. We do not dismiss it as the max value because it is an outlier.

@davidlyash5217 8 жыл бұрын

From my understanding, you can’t dismiss 50 as the max value. That is why we do the spread analysis in the first place in order to determine if our data or sample is skewed by an outlier if there is one present in the data set. And so, that is why we first try to find things such as range, variance, standard deviation and quartiles in order to see if the MEAN is a good representative of the population sample. That’s my inference from my stats class

@ramprakashprajapati148 6 жыл бұрын

I like your voice ... falling asleep...

@missawesome8244 4 жыл бұрын

Then dog howls

@ramprakashprajapati148 4 жыл бұрын

🤣🤣🤣

@ramprakashprajapati148 4 жыл бұрын

You liked it after 2 years ... Why 😅😅

@ramprakashprajapati148 4 жыл бұрын

Tell me

@missawesome8244 4 жыл бұрын

my math teacher put this video for assignment so i wanted to see comments

@DoH-Shura 8 жыл бұрын

Very helpful

@jesslorenzana8668 4 жыл бұрын

shes good

@haripriyacumaraswamy2814 9 жыл бұрын

Yey!!

@snehabiju9724 3 жыл бұрын

Tnq so much

@rtech8779 6 жыл бұрын

which sofware is this

@narasimhapuvalla3211 7 жыл бұрын

may be i think its formula 1.5(iqr) is it right?

@pruthvirajgowda4983 10 жыл бұрын

salute to u madam

@unamaya4043 9 жыл бұрын

Can both minimum and maximum be outliers?

@jaxx600 9 жыл бұрын

Yes, you can have multiple outliers - very large, very small, or both!

@uunyoga1242 8 жыл бұрын

is it posible to have all of the data as the outliers? becouse when i do calculate my data, all my data are outside the outlier

@jaxx600 8 жыл бұрын

No, this is not possible. Perhaps you have a calculation error.

@uunyoga1242 8 жыл бұрын

hmmb, thank you, i'll check it again,

@uunyoga1242 8 жыл бұрын

+MathJaxx yes, my calculation was wrong, thanks a lot madam, its help me doing my assignment

@omgohil6137 Жыл бұрын

Are you Devasenadhipati's Daughter ???

@waldoadams1611 5 жыл бұрын

Median does not always = mean (average)

@san2sreshta 9 жыл бұрын

why we use 1.5 while testing outliers.?

@ModestyisbeautifuL643 8 жыл бұрын

+Santhosh Sreshta dats ma question as well lol

@jaxx600 8 жыл бұрын

+gole rural We use 1.5 to create an interval. The interquartile range (IQR) represents the middle 50% of the data values. When we multiply the IQR by 1.5, and then add/subtract this value to/from the IQR, we are creating a larger interval around the IQR, that is twice the size. This larger interval is centered (geometrically speaking) around the median. Any value outside of this interval is considered too small or too large and not descriptive of the data set. One can visualize this by imaging the box in the boxplot as a strip of paper that can be cut in half and then opened up like window shutters.

@JohnnyDoeDoeDoe 9 жыл бұрын

Hi Ms Hu

@sexbuffet 9 жыл бұрын

hey

@morsmagne 8 жыл бұрын

It was explained well up until the equation to determine outliers. In the video, we are expected to learn the equation by rote, rather than understanding it. I think the video would be better if you explained what you were doing by using a diagram and also giving an explanation as to why the mathematical community accept this method rather than any other alternative. Otherwise, it's mindless.

@kishataylor6963 7 жыл бұрын

You said it perfectly. I was hoping there would be some explanation not just listing formulas.

@chordsequencer001 6 жыл бұрын

When you test a data point and find that it's "good", can we say that it's "usual"?

@dharas4114 4 жыл бұрын

Step 3 and step 4 are not correct equation should be [Q1 -1.5 (IQR) , Q3 + 1.5 (IQR)]. But they just did [Q1(IQR) , Q3(IQR)] then got the value set from that. ]