statistics

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i have a question regarding statistics. i just don't know how to do it and would really appreciate if someone could tell how i can solve it.

the question is;

a population of scores contains exactly 5 scores : 2, 3, 6, 8, 11
a) there are 5x5=25 different samples of two scores (n=2) that can be drawn from the population. one would be (2.2), (2,3), (2,6) and so on. List all the possible sample means. (note: this is analogous to sampling forever , so in effect we have just created a sampling distribution of means.)

ive looked through all my notes and my textbook and i just cant figure out how to this.

thank you :)

* 13 minutes ago
* - 4 days left to answer.

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