Confidence intervals and margin of error | AP Statistics | Khan Academy

I've been watching Khan Academy since I was high school back in 2012. I'm now in my master's program in 2024 at Columbia for epidemiology and Khan Academy is still out here saving my life during finals week. Thank you so much for being the best educational resource over the years.

I hate statistics 😂

Amazed at how good you are at drawing circles, bell curves, and explaining these concepts :D

goat

so the sample population probabilities in the abscissa, whats in the ordinate then?

I did not get it... how did you calculate 0.54 and 0.58????

Thank you sir!

I'm in a T30 MBA program and referencing khan academy videos because the material in these videos is easier to digest (better taught). So please, keep up the good work! And donate to this awesome organization!

Appreciate this video and others on statistics and charts, provides a clear understanding

i still don’t get it i’m gonna fail my last unit

wish me luck

thank you because my teacher confused the ** out of me

I still can't get how to calculate margin of errors.

I missed a day of class because of a social burnout, so here I am 💀
Edit: explaining better than my teacher lol ngl

thsi sticvkjsd

brilliant

Anyone has a video that explains why Sigma=sqrt(p*(p.1)/n)?

that helped a lot with explaing margin of errors

Great to the point explanation. Thanks.

thank you

What about B? with 95% confidence, voters that will support B will fall between 0.36 and 0.56? In other words, more voters support A and in a wider area that B?

I think it is wrong to say "There is a 95% probability that p is within 2 sd of p^". This is because p is not bound under probability, it's a fact. P is P with probability 1.

what would change if i wanted to change the confidence level from 95 to 99%?

Thank you so much for this channel. You are doing fundamental work for equality; knowledge available for everyone. It's priceless. Trying to donate as soon as possible! Thank you for your hard work!

This is incredibly well explained!

Got all my doubts cleared about confidence interval. Thanks a ton

Who else watching this right before the test lol

Wow

No matter the topic...I know I will understand something if I come here......🥲

This guy is a true hero

Thank you as always Khan Academy!💛

ari shaffir?

so cool

Why the population standard deviation equation in this video is quite different than the one you showed in other videos? It doesn’t make sense. Why std=square root of p*(1-p)/n? Never see this std equation in any text book as well. Can anyone please tell me where it comes from?

You saved me and my career. Thanks

Can i use 99% confidence level on 10% margin of error sir ? Thanks.

Explan are good

You're best

I can't begin to tell you how much I appreciate the effort and simplicity you put into this video. Thank you for all the hard work!!!! I'm currently passing my class with an A and it's all because of this channel.

I love how he is using the trial version of the TI calc haha

Very helpful!

Its insane how much better this is than my actual professor

Watch some guy on the internet teach this better in 11 minutes than my stats teacher did all unit. A true hero

Thank you but I didn't understand anything at all. fck stats

Excellent teaching

I don't still get it😢

why not n-1 on the sd? I thought n-1 is for samples like this one?