Discrete Random Variable : How to find probability from a CDF.

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How to find probability from a given Cumulative Distribution Function.

#AM025 #RandomVariable #HanyadiKMJ #OnlyinKMJ

Cikgu Ainan

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Why are random Indian guys on youtube so good at teaching people stuff. I had no idea what a CDF was and it was taught in a whole lecture and I didn't get it.
This video here, wow. Absolute brilliant guy explains it so simply and now I really understand what this is.

greego

So easy to understand! Saved me for tommorows exam, thank you and keep going!

ionplesca

This is a really good tutorial! Thank you!

zerodegreescelsius

thank you for helping statisticians across the world!

mrbioproductions

thanks, its brief and straight to the point

emmanuelclement

These video helped me understand more. Thank you

lesliesuze

The distribution of X is given by
x 1 2 3 4 5
F(x) 0.2 0.32 0.67 0.9 1
P(x) 0.2 0.12 0.35 0.23 0.1

Just check if it correct. 😊

thisiswhoiam

Hi thank you for the clear explanation!

FroodTooth

If P (x<2), what would be the answer?

shinedelunas

i just found this video because of my assignment. It was really helpful, I just to confirm though. In the case of P(X>2), should i add first the ones before the f(2) if the sum is not given before i subtract it to the total?

theoadrianaquio

This is CMF which is used for Discrete Random Variable

motivatedtillup

Can't we do it like p(x>2)=p(x=3)+p(x=4)+p(x=5)
=0.67+0.9+1
=2.57

greeksgaming

Hey, Its a good breakdown of the question. But i dont quiet get the Last question, the "C". How did you get the answer?

kyancuarte

For the c, why is it f(4) - f(1) not f(4) - f(2)

kab

thanks for the explanation, great video
btw
i have some question
what is the probability if we take
P (2 < X < 3)?
is it gonna be 0?
and
P (2 < X < 4) ???

hyper

Owalikumsalam
What's your country?

isthamja

Let X have the binomial p.d.f. | f(x)= 3! x!(3-x)! ( 2 3 )^ x ( 1 3 )^ 3-x, x=0,1,2, 3. Find the p. d. f.of Y = X ^ 2 ?
Can you solution

عليباحث

I am lost can you explain where F2 comes from?

angelaknight

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