Median, mean and skew from density curves | AP Statistics | Khan Academy

High level analysis of density curves. A focus on median, mean, left-skew and right-skew.

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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[kjb]

This was a very simple, yet helpful explanation of density of data. Thank you.

[danhawkins]

This was a really nice way of explaining it in simpler terms. Thank you for your help!!

[FlameFrame-wvev]

😮😮😮Cool😮😮😮. Now I learned more about this, Thanks

[debesteves.]

Very objective and clear explanation! Thank you

[ilhamakhyar]

Thanks for the video, it's really helpful

[NnRNoAh]

He never explained what the mode would look like on the second symmetric graph, but I think the video is good to grasp the idea of how mean and median shape the probability distribution function, or how they look like based on the shape.

[thelegion]

What if you combine 1st and 2nd graphs and compare mean, median & mode???

[sukursukur]

Why do we calculate standard deviation by using mean? Namely, why dont we use mode instead of mean?

[adamvlogging]

"The mean is you take each of the possible values and you weight it by their frequencies and you add all of that up"-very confusing i.m.o.

[alexandershishkov]

How to calculate the standard deviation of a non-normal distribution?

[thaumaston]

just a quick correction. today i drank exactly three glasses of water. down to the subatomic level baby!

[ayushagarwal]

He's wrong. The mean is what makes the area equally divided into two parts and not the mean. Think of what he said, "Mean is like a fulcrum", the two sides will balance only if the area of both sides are equal(If you know decent physics, you can prove this easily). Thereby contradicting what he said about the median. Let me know what you think!

[majestic]

I thought the middle part is the mean of the data. Let me know.

[nabeeli]

How the F does Sal know shit about every topic out there and finds a really good way to teach it?

[paigenash]

no one:
me watching this video: OnE DiReCtIoN

[tricanico]

this is very poorly explained, not even talking about the lack of information
I wish you good luck. Try to help people, why are you doing theese kind of videos?