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# probability mass function watch

1. if the question is what is the probability mass function of Z, how do i present the answer?
2. (Original post by asdfyolo)
if the question is what is the probability mass function of Z, how do i present the answer?

Something like that - for the range of values list the formulae for calculating the probability and the range for which each is used.
3. (Original post by SeanFM)

Something like that - for the range of values list the formulae for calculating the probability and the range for which each is used.
thanks. so if Z is rolling a fair dice do i put 1/6 if z=1
1/6 if z=2
1/6 if z=3

or do i put 1/6 if x in {1,2,3,4,5,6}
4. (Original post by asdfyolo)
thanks. so if Z is rolling a fair dice do i put 1/6 if z=1
1/6 if z=2
1/6 if z=3

or do i put 1/6 if x in {1,2,3,4,5,6}
Second option is more neat.
5. (Original post by asdfyolo)
thanks. so if Z is rolling a fair dice do i put 1/6 if z=1
1/6 if z=2
1/6 if z=3

or do i put 1/6 if x in {1,2,3,4,5,6}
You could also do:

Thanks to ghostwalker and poorform for the correction!
6. (Original post by Zacken)
You could also do:

[/pedant]

7. (Original post by ghostwalker)

[/pedant]
(Original post by poorform)

I'm an idiot.

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