Which of the following are possible examples of sampling distributions? (Select all that apply.) mean trout lengths based on samples of size 5 average

Step 1
We are given 5 examples from which we have to identify examples of sampling distributions.
First need to know what is mean by sampling distribution.
Step 2
The sampling distribution of a statistic is the distribution of the statistic for all possible samples from the same population of a given size.
It can also be defined as, the sampling distribution of a statistic is the distribution of that statistic, considered as a random variable, when derived from a random sample of size n
Step 3
Therefore, to identify sampling distribution, we first need sampling size for that distributions.
From given examples, only two examples having given sample size.
Hence,
Mean trout lengths based on samples of size 5
Average male height based on samples of size 30
These two are examples of sampling distribution.