Examples of using The random variable in English and their translations into Thai
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Colloquial
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Ecclesiastic
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Ecclesiastic
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Computer
And the random variable is just that function mapping.
So it has some true mean, some population mean for the random variable y.
The random variable x plus the random variable y.
This is equal to the expected value of the random variables, X and Y, X times Y.
And the random variable, X, is the number of shots I make.
Think of it this way, you can view this as the population mean of the random variable.
Like this with the random variables and that it's a little bit confusing.
And then we figured out the different probabilities that the random variable could take on different values.
Let's say I have the random variable a, and I define random variable a to be x minus y.
So if we say that the random variable, x, is equal to the number of-- we could call it successes.
Let's say I have some third random variable that is defined as being the random variable x plus the random variable y.
The random variable, the number of heads I get in 5 flips of the coin-- it was equal to 5 factorial divided by n factorial.
Each of the values of probabilities for each of the random variable values-- you can figure them out by using your binomial coefficients.
So the expected value of these squared differences, and that you could also use the notation sigma squared for the random variable x.
So one instantiation of the random variables, you have-- you sample once from the universe, and you get X=1 and Y=3.
When I flip a coin that's a random process, each flip is an experiment and then the random variable is just quantifying that experiment.
If I were to say what's the probability that x, the random variable x as given by this definition, is greater than 5, you would take-- well, let's say greater than or equal to 5.
And this random variable, just to go back to the top, we defined the random variable as the number of cars that pass in an hour at a certain point on a certain road.
I have the random variable X. If X is normally distributed we could write that X is a normal random variable with a mean of 0 and a variance of 1 or you can say that the mean expected value of X is equal to 0 or in that the variance of our random variable X is equal to 1.
And the reason why I'm doing this connection is one, to make you see the connection between the random variable and the probability, and the statistics that we talked about earlier.
If we talk about the variance of the random variable x, that is it the same thing as the expected value of the squared distances between our random variable x and its mean.
So this is the distribution of random variable x.
So the expected value of our random variable is equal to the sum.
What is the probability that my random variable is equal to 2?
It's the expected value of random variable minus expected value of X.
I will use blue, because that was what we were using for the y random variable.
We're summing over all of the values that our random variable can take.