Suppose one is heads, 0 is tails either comes up, it's is 0.5 chance.

World of Warcraft is one of the most successful games of all time.

less than minus five.

Here in America, people actually love TV.

That is variance and another term for variance is mean squares because it is the mean of the sum squares.

Solar cells collect light for four and a half hours though.

There are 200 million Tweets being posted every day.

They are really easy formulas for fitting data to Gaussians, and I'll give you the result right now.

He was a man of average height.

Blissful productivity. I love it.

Or you could say this is 62 .

The idea is, you're just dividing by N, right?

R Right. Did we have more cancelations from women this year?

Extremely average in every category. Remarkable, truly.

The average American is nearly 20 times richer than the average Chinese by the 1970s.

In fact, the West has lost its work ethic.

We're not doing that well when it comes to insurance.

We're trying to watch.

But that's too complicated for today, so I'll simplify it for you, and I give you one average point for each survey.

And in fact, the global average is about what it is for Ghana.

In my country, that was the case in 1974.

He was an average sort of guy. The image of us all.

The three main principles are what we just we worked through.

I mean, what could possibly go wrong?

Just from the perspective of climate change, the average urban dweller in the U.S. has about one third the carbon footprint of the average suburban dweller, mostly because suburbanites drive a lot more, and living in detached buildings, you have that much more exterior surface to leak energy out of.

Use efficient lights, turn off equipment and sleep idle computers when not needed.

If you look at the current situation, you have a thousand TED Talks.

But that's a ton of power.

In assignment 1, I literally want you to flip a coin 1000 times.

In fact, in 1500, the average Chinese was richer than the average North American.

Women lie more to protect other people.

Say we have a prior of a Gaussian with a mean mu and covariance sigma squared, and our measurement has exactly the same mean and same covariance.

When you get to the 1970s, which is where this chart ends, the average Briton is more than 10 times richer than the average Indian.

So you know a distribution is perfectly normal if it's, if it has this bell shape and if it's symmetrical around the mean.

The energy consumption of this typical tank here is 80 kilowatt hours per hundred person kilometers.

In fact, there are teachers throughout the country who are helping their students make extraordinary gains.

There's two possible actual outcomes there's outcome 1 and outcome 0, both have probability of 0.5.

And recent studies based on US census and FBI statistics of 2011 state that the US average to become a victim of a crime in any given city, is about one in thirty people.

So, intuitively speaking, the formulas are really easy.

And then we told them the average likelihood of someone like them to suffer these misfortunes.

It gives us things like 0 or 1s as outcomes. Like this thing over here.

Here's a typical one, and I apologize the axis over here can't really be read, but you can take with faith that the center is 0.5, and you can see the characteristic bell curve for this simple coin flipping experiment.

Earth wants a peaceful outcome just as much as you do.

Now he's in London, and he ships by FedEx all around the world.

Where maybe I saved 5, but someone else borrowed 5.