Median

Median

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Middle value in the normal distribution

This line over here this is the median this right over here is the median.

let's look at the lecture based classroom, and let's pick the median performance as a threshold.

So this is the middle of all of the trees that are less than 21, this is the middle age for all of the trees that are greater or older than 21.

The answer is 3 because 3 has 3 data points and no other value has more than 2.

Half of them gave over the Internet.

So I'd like you to give me one of those medians here.

Many people prefer to use a unique median, and to do that, they just take the simple mean of the acceptable answers for the in data method.

Here are four independent proposals to build molten salt reactors and their dates.

Another way is with the median. And this is to pick out the middle number.

So even though 24 isn't one of these numbers, the median is 24.

Over at the processing station. Sublevel 3, under the main cooling towers.

But the problem with it is it's not unique.

Let me explain it to you this way the mid ..

Just to practice this idea, here's little quiztistics. Here's a sorted list of two digit numbers.

So given that, what's the median of this set of numbers going to be? Let's try to figure it out.

let me just add one the median isn't exactly defined.

Now let's take a static image. Can you see this?

Next column is standard deviation that is a measure of variability that we'll talk about in detail in a moment.

What is the range of tree ages that he surved?

You can even see it.

So if you were to order all the numbers in your set and find the middle one, then that is your median.

That's what? 114 2 which is 57.

The other very typical way is the median. And I will write median. I'm running out of colors.

The monorail follows the water mains to the central hub beneath Wayne Tower.

So the median is going to be halfway in between 3 and 4, which is going to be 3.5. So the median in this case is 3.5.

Well, here we have five numbers. We have an odd number of numbers. So it's easier to pick out a middle.

So this is the median for all of the trees that are less than the real median, or less than the main median.

This is really a way of seeing the spread of all of the different data points, which is the age of the trees, and to also give other information,

And hopefully this is reviewed to you, but if not take the time to go through this.

So if you have an even number of numbers, the median or the middle two, the essentially the arithmetic mean of the middle two, or halfway between the middle two.

If you deviate too much in the parameters that are close to the midline of that life permitting survival range, you go into disease or death.

Kind of a crazy data set. But in this situation, what is our median?

So I start the walk. Everything is fine.

Let's try to order it. So we have 1. Then we have another 1.

Center on screen

So let me give you a list of numbers 5, 9, 100, 9, 97, 6, 9, 98, and 9.

3, 9, 3, 8, 2, 9, 1, 9, 2, and 4.

I was, um, living in central America at the time.

The mean is always precisely determined.

You get on the JR Chuo Line.

March, April, May, June,