Mean, Median, and Mode: Measures of Central Tendency: Crash Course Statistics #3

Today we’re going to talk about measures of central tendency - those are the numbers that tend to hang out in the middle of our data: the mean, the median, and mode. All of these numbers can be called “averages” and they’re the numbers we tend to see most often - whether it’s in politics when talking about polling or income equality to batting averages in baseball (and cricket) and Amazon reviews. Averages are everywhere so today we’re going to discuss how these measures differ, how their relationship with one another can tell us a lot about the underlying data, and how they are sometimes used to mislead.

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[Faith-xvvo]

The fact that crash course is free is such a blessing

[timtran]

Statistics are currently my favorite field of mathematics.They can be very easily applied, and best of all, they can really help me understand a situation. I feel as though statistics have really helped me make better decisions in my life, and in some ways, made me a smarter individual. Thank you Crash Course for making these truly enlightening videos.

[thatisjustgreat]

Statistics has it's moments. The mean is one of them.

[graciestrawser]

This series is great! I'm a college student who is taking Introduction to Statistics, which can be difficult because my algebraic understanding doesn't go past Algebra II, which I took 3 years ago. This series PERFECTLY aligns with what I'm learning in my statistics course, and it couldn't be more helpful. Thank you so much for all your hard work!

[luciofernandes]

Oh god I'm watching for fun a class that I hated

[bluon]

Mode - Most
Median - Middle
Range - Subtract the smallest from the largest
Mean - Add and count and divide

This is a little song I learned in the fifth grade. Huh. I didn’t know it was statistics.

[GladysSpume]

This is a fantastic introduction. I'm not a mathematically minded person, but am about to embark on a project that will require statistical analysis and this has been the best introduction I've found. Thank you!

[flynjack]

Man i'm gonna need to watch this more than once.

[ShawnRavenfire]

This is a huge pet peeve of mine. I keep hearing politicians saying that the "average" income is rising, and I'm always like, "Mine isn't!"

[gah-kaileung]

I wish my university stats classes were as fun as these videos.

[Pfhorrest]

This is really helpful for understanding the inequality of income. For US personal incomes, the mean is about twice the median, but the mode is barely over half of it. That is to say: about 50% of Americans make half or less than the average income, and the largest group of Americans make only a quarter of average. Because most of the income is concentrated in a tiny number of hands. A total of about 75% of Americans makes less than average. Yes, most people make below average. We are all fucking poor.

[lucash]

Very useful analogies - Adrienne is doing a great job so far!

[levihowell]

I loved the admission that accurate statistics can be misleading. The mean vs median ncome example was perfect

[ruthgentle]

I am preparing for a teacher certification test in another state and this video was very helpful and easy to understand. Thank-You!

[haikohuvenaars]

"As soon as Musk walks into the room, the average income skyrockets", I see what you did there..

[Goalkeepers]

You make people that wouldnt search for subjects like statistics, actually watch and learn statistics, because you make it clear, and fun! Thank you. I will recommend you all over :)

[sidzilpe]

Ok . Now I

CRASH COURSE IS SLOWLY MOVING FORWARD TO CRASH COURSE MATHEMATICS.

[isabelbraico]

tfw u start studying for ur ap test 13 hours before it starts... thanks crash course! love u

[MJAY-N]

This channel is such a delight! I have always enjoyed math but since my teachers in high school weren't the best, I gradually lost interest in it. These videos have definitely reignited my interest in math. Thank you so much for sharing this!!

[FNButterStrings]

This course is a great supplement to the computer science course.