anaysis tookpak

[Guest]

why would the "Sampling" tool render duplicate values?

if i have 60 focus group candidates, and i do a random sampling of the 60
candidates' numbers to get a sample of 10 random candidates, why would there
be duplicates?

thanks,

 

[Niek Otten]

Why not?

But look here:

http://www.tushar-mehta.com/excel/newsgroups/rand_selection/index.html

 

[Guest]

thanks for the feedback -- however, if i do a random sampling, ie a focus
group, one candidate cannot be in the focus group two time - right?

 

[Niek Otten]

That is just one application of "random" (I'm not even sure it is).
If I have 10 positions that I want to fill randomly with numbers 1-10, and
I've done 9 and duplicates are excluded, there is not a lot of randomness
about the last one.

I think all depends on how "random" is applied.

I hope the link to Tushar gave you what is required in your situation.

 

[Niek Otten]

Just to add: rolling dice is supposed to be random. That doesn't exclude
numbers that already have come up, though.