Probability Mass Function
Hi,
I have a question:
Let X be a random variable with a given PMF of:
x | 0 | 2 | 4 | 5
p(x) |0.15 | 0.30 | 0.30 | 0.25
I need to calculate
P[ 2 < X < 4]
would this simply be 0? The question does not specify whether it is a discrete random variable or a continuous random variable.
In the event it is a continuous random variable, how do I find the answer?
thanks.
Re: Probability Mass Function
Quote:
Originally Posted by
99.95
Let X be a random variable with a given PMF of:
x | 0 | 2 | 4 | 5
p(x) |0.15 | 0.30 | 0.30 | 0.25
I need to calculate
P[ 2 < X < 4]
would this simply be 0? The question does not specify whether it is a discrete random variable or a continuous random variable.
In the event it is a continuous random variable, how do I find the answer?
The pmf tells you that it is not a continuous random variable.
If it were then it has a completely different pmf.
Re: Probability Mass Function
ah, but of course!
Thanks.