Mean and standard deviation versus median and IQR | AP Statistics | Khan Academy

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Learn to choose the "preferred" measures of center and spread when outliers are present in a set of data.
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Me to

[@PlaYBoi_slime]

Facts

[@ianrjm969]

I've read so many articles and watched so many videos, but this is the first one that turned the light on and help me understand. Thank you.

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[@alexaeckhart5250]

This helped SO much!

[@montanasojourn]

Excellent explanation.

[@ashah0520]

What is the difference between MAD and Standard Deviation?

[@MemeMand1996]

very informative, thanks a lot

[@vineethreddymadadi7940]

Awesome Explanation!

[@ammeralmo]

This is great!

[@natalietucker4364]

Do you always use IQR as the measure of spread if median is the best measure of central tendency? Is this even if there aren't any outliars?

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[@lennartka4848]

The Standard Deviation would be 66.046; you divided 34897.56 by 9; however the formula states n-1. Since there are 9 numbers n=9 --> 9-1=8

[@natalie_lau1]

Do you know what happens when there are 2 data sets, and one of the IQR is greater than the other? SO like, what does it mean when there is a high IQR vs. a low IQR?

[@caioherdy]

Nice!

[@Arbitrageur_]

You didn't even touch on what the value of the SD represents on the chart. So you get a 75%

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+1 like

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First