# What is a positive integrable random variable? (no comma bet...

What is a positive integrable random variable? (no comma between positive and integrable)

### Re: What is a positive integrable random variable? (no comma...

Thanks

That is what I thought it meant. The lack of a comma between the words made me suspicious.

### Re: What is a positive integrable random variable? (no comma...

Assuming the words are consistent with standard usage, positive means the random variable is always >0 (or >0 with probability 1), while integrable means that the mean (mathematical expectation)is finite.