# Thread: Probability Function of conditional distribution of X

1. ## Probability Function of conditional distribution of X

https://imgur.com/a/iSUsUPb

I am not sure why it is not P[X<=3|X<=4] if it is P[X<=3|X<=5] aren't they forgetting the value of P[X=4]???

3. ## Re: Probability Function of conditional distribution of X

$(X=4) \not \in (X\leq 3)\cap (X\leq 5)$

4. ## Re: Probability Function of conditional distribution of X

I didn't read the last sentence, lol