Judging outliers in a dataset | Summarizing quantitative data | AP Statistics | Khan Academy

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Using the inter-quartile range (IQR) to judge outliers in a dataset.
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AP Statistics on Khan Academy: Meet one of our writers for AP¨_ Statistics, Jeff. A former high school teacher for 10 years in Kalamazoo, Michigan, Jeff taught Algebra 1, Geometry, Algebra 2, Introductory Statistics, and AP¨_ Statistics. Today he's hard at work creating new exercises and articles for AP¨_ Statistics.
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[@SexyHunkofMan]

you teach better than my teacher lol

[@dathenacevedo9553]

I agree

[@captaincrayfish894]

Ikr

[@joshuajtmfacts8876]

Exactly

[@turquoiz_the_potato]

@@joshuajtmfacts8876 facts

[@ameerissa5199]

That swallow at 3:32

[@turquoiz_the_potato]

Sal has such good handwriting with a mouse. And when I try that, I usually end up writing something even worse than with my left hand.

[@IcedReaver]

Thanks for explaining the outliers. I use Minitab in work for statistical analysis and wondered why the box plots put asterisks as outliers but now I know!

[@kenna8397]

The straight lines though!!!

[@Yamilethal7]

thank you so much! just help me realize what I was doing wrong ... just in time before test!

[@cloudblues]

same tbh (Hope u got a great grade) (0.

[@ivanna2368]

hi i love your channel so much

[@SupeHero00]

Why 1.5?!

[@unud_chrysantaparamithakar1254]

How about finding an outlier in two variable points? I've made the pearson correlation coefficient and one data point was really far away, however, i want to prove that it's an outlier. What formula can I use?

[@cococnk388]

Thanks ...understood the outliers visually and through calculations.

[@vigneshnagaraj7137]

Great explanation. But can you help in representing the outliers using python pandas.

[@mahikanair7172]

Really helpful. Thanks

[@godismyjudgealways6919]

very great explanation

[@lerrysteven9231]

Thanke

[@anveshkonda8334]

Thanks a lot..

[@rohitnemani1575]

Thank you im doing this the day before the test

[@captaincrayfish894]

Rohit Nemani its been 11 months, how did the test go?

[@soggypotato6381]

Yo same

[@ha7_na7]

Smeee

[@rjj2233]

thank you

[@evelinzavala7918]

Thanks so Much this helped me alot

[@opinionishstrikesback6151]

Nice video

[@germplus]

Great explanation. Thank you

[@foxytailXD]

Omg legend!!! Thank you so much!!

[@Photon-1927]

Good work

[@samdaramroei8653]

that was actually very Awesome!!!! Thanks Sal!!!!

[@apollobyprod]

Who has to watch this video cuz they're doing data stuffs in Math class?

[@asbinanceasbinance1473]

fool-proof! thanx a lot!

[@fallenz4139]

4:44

[@kelly_browning]

Hi Jeff, what would we do to find our Q1 and Q3 if we have an even number of values?

[@declanee7184]

Kelly B find the average of the 2 middle numbers

[@soggypotato6381]

Probably known by now, but for anyone wondering, you add the two numbers in the middle then divide by two. For example.
3, 3, 7, 9
This would be (3+7)÷2=5
The median is 5

[@johnsmith7238]

1

[@swatigupta107]

tq soooooooooooooooooo much sir for helping us :)

[@godismyjudgealways6919]

this helps me

[@saetainlatin]

What program is Sal using for explaining? Sketchbook?

[@samdaramroei8653]

thats good question !!! ill let u know when i found out!

[@herox105]

no

[@toiletpaper3536]

@@samdaramroei8653 two years later...

[@samdaramroei8653]

@@toiletpaper3536 Lmao @Sagen Sagita Sal uses a PC with:
Camtasia Recorder ($200*) SmoothDraw3 (Free) Wacom Bamboo Tablet ($80)

[@hengdezhu2832]

After removing outliers, shouldn't the value of Q1,Q2,Q3 be changed?

[@RachelPun]

Came here to ask this too.

[@ivanna2368]

im the first like and view!!!!!!!!!!!!!

[@samdaramroei8653]

Nice!!
now Im jealous!!!!!

[@WahranRai]

You will be in Guiness book !!!

[@theskeptic8489]

GREAT VOICE!

[@collins5665]

My IQR is greater than my Q1. What do I do???????????

[@sparkyyyy7619]

Shouldn't be

[@ebrahimmohammed1982]

watching these amazing nobody every should fail in or complain about statistics ....!

[@user-lt3tw2gi4y]

love ❤🎉

[@anyaabramchuk2540]

YUSSS it was 1 C:

[@Moonwake534]

I
1+1=3
1

[@ihatewh0res69]

1+1=11

[@mikaila9783]

he kinda sounds like CORPSE

[@triggethridge9326]

oh no... magic number scare me

[@katz_gacha2410]

I still don't get it -_-

[@deborahshin2156]

Bruh

[@vyspez]

Came from math class lol

[@MrBuckethead911]

you legend

[@paigecdee]

You lost. me when you changed the 1.5 to 7.5. I thought the 1.5 was part of the equation. Why isn't it 13 - 1.5 x 5 ??

[@dominiccooper8407]

so so what

[@octavios.5448]

I didn't understand anything.....

[@surendrapamidi]

less big word i can't understand -his kid >-

[@cityboydanny1758]

You never showed what an outlier is smh