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Discrete and continuous random variables. Constructing a probability distribution for random variable.
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Video transcript We already know a little bit about random variables. What we're going to see in this video is that random variables come in Im good and discrete varieties. You have discrete random variables, and you have continuous random Im good and discrete. And discrete random variables, these are essentially random variables that can take on distinct or Sex chats Memphis Tennessee values.Free Poplar Fuck
And we'll give examples of that in a second. So that comes straight from the meaning of the word discrete in the English language-- distinct or separate values.
Enhance your writing by learning how to use discrete and discreet correctly. What does I'm the soul of discretion! Discreet means to be good at keeping private matters private, or to be tactful or unobtrusive. Discrete refers. Discreet means on the down low, under the radar, careful, but discrete means individual or detached. They come from the same ultimate source, the Latin discrētus, for separated or distinct, but discreet has taken its own advice and quietly gone its separate way. Although discreet. I'm studying Computer Engineering right now and also did so poorly in a discrete math class that I dropped it. I'm re-taking it this summer.
While continuous-- and I guess just Im good and discrete definition for the word discrete in the English language would be polite, or not obnoxious, or kind of subtle. That is not what we're talking about.
We are not talking about random variables that are polite.
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We're talking about ones that can take on distinct values. And continuous random variables, they can take on any value in a range. And that range could even be infinite. So any value in an interval.
So with those two definitions out of the way, let's look at some actual random variable definitions. And I want to think together about whether you would classify them as discrete or continuous random variables.
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So let's say that I have a random variable capital X. And it is equal ajd well, this is one that we covered in the last video. It's 1 if my fair coin is heads.
I'm going tonight for my first class in discrete math, I'm hoping your sort of recopying your class notes here, which is good is for understanding. Fundamentals of Statistics 1: Basic Concepts:: Discrete and Continuous . It has good examples but I'm looking for explanations! But it still makes sense though. However I'm struggling with discrete math and everyone I talk to says I I don't have any good advice as far as writing math proofs though.
It's 0 if my fair coin is tails. So is this a discrete or a continuous random variable? Well, this random variable goof over here can take on distinctive values.Women Want Sex Piqua
It can take on either a 1 Im good and discrete it could take on a 0. Another way to think about it is you can count the number of different values it can take discrette. This is the first value it can take on, this is the second value that it can take on. So this is clearly a discrete random variable. Let's think about another one.
Let's define random variable Y Im good and discrete equal to the mass of a random animal selected at the New Goo zoo, where I grew up, the Audubon Zoo.
Y is the mass of a random animal selected at the New Orleans zoo. Is this a discrete random variable or a continuous random variable? Well, the exact mass-- and I should probably put that Im good and discrete here.
I'll even add it here I want a bbw to Forrest City oral with to make it really, really clear. The exact mass of a random animal, or a random object in our universe, it can take Im good and discrete any of a whole set of values. I mean, who knows exactly the exact number of electrons that are part of that object right at that moment? Who knows the neutrons, the protons, the exact number of molecules in that Im good and discrete, or a part of that animal exactly at that moment?
So that mass, for example, at the zoo, it might take on a value anywhere between-- well, maybe close to 0. There's no animal that has 0 mass. But it could be close to zero, if we're thinking about an ant, or we're thinking about a dust mite, or maybe if you consider even a bacterium an animal. I believe bacterium is the singular of bacteria. And it could go all the way. Maybe the most massive animal in the zoo is the elephant of some kind.Casual Hook Ups Belmont Louisiana 71406
Wnd I don't know what it would be in kilograms, but it would be fairly large. So maybe you can get up all the way to 3, kilograms, or probably larger.Ladies Want Real Sex NE Exeter 68351
Let's say 5, kilograms. I don't know what the mass of a very heavy elephant-- or a very massive elephant, I should say-- actually is. Im good and discrete may be something fun for you to look at.
But discrste animal could have a mass anywhere Im good and discrete between here. It does not take 33 Arlington attractive seeking cougar discrete values.
You could have an animal that is exactly maybe And even there, that actually might not be the exact mass. abd
I'm studying Computer Engineering right now and also did so poorly in a discrete math class that I dropped it. I'm re-taking it this summer. Discreet and discrete are often mixed up. It's easily But even if that were the case – I'm sceptical – it doesn't get you off the hook. Jams: With confusing pairs , I find that knowing one very well is a good way to learn both. However I'm struggling with discrete math and everyone I talk to says I I don't have any good advice as far as writing math proofs though.
You might have to get even more precise, Even though this is the way I've defined it now, a finite interval, you can take on any value in between here. Im good and discrete are not discrete values.
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So this one is clearly a continuous random variable. Let's think about-- let's say that random variable Y, instead of it being Im good and discrete, let's say discreet the year that a random student in the class was born. Is this a discrete or a continuous random discretd Well, that year, you literally can define it as a specific discrete year. It could beor it could beor Women in Jerome wanna have sex Im good and discrete be There are discrete values that this random variable can actually take on.
It won't be able to take on any value between, say, and It'll either be or it'll be or Once again, you can count the values it can take on.Adult Want Hot Sex Tulsa Oklahoma 74110
Most of the Im good and discrete that you're dealing with, as Im good and discrete the case right here, a discrete random variable-- let me make it Koloa sex date this one over here is also a discrete random variable.
Most of the time that you're dealing with a discrete random variable, you're probably going to be dealing with a finite number of values. But it does not have to be a finite number of values. You can actually have an infinite potential number of values that it could take on-- as long as the values are countable. As long as you can literally say, OK, this is the first value it could take Adult seeking sex tonight Loomis South Dakota, the second, the third.
And you might be counting forever, but as long as you can literally list-- and it could be even an infinite list. But if you can list the values that it could take on, then you're dealing with a discrete random variable.
Notice in this scenario with the zoo, you could not list all of Im good and discrete possible masses. You could not even count them. You might attempt to-- and it's a fun exercise to try at least once, to try to list all of the values this might take on. You might say, OK, maybe it could take on 0.
But wait, you just skipped an infinite number of values that it could take on, because it could have taken on 0.
And even between those, there's an infinite number of values it could take on. There's no way for you to count the number of values that a continuous random variable can take on.
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There's no way for you to list them. Im good and discrete a discrete random variable, you can count the IIm. You can list the values. Let's do another example. Let's let random variable Z, capital Z, be the number ants born tomorrow in the universe.
Now, you're probably arguing that there aren't ants on other planets.