math
posted by dddd47906 .
A box contains 12 lightbulbs. Find the number of ordered N samples of size 3:
(a) with replacement
(b) without replacement
Also, please do Not solve.

math 
Reiny
You are probably not getting any replies because we might all be confused by
" Find the number of ordered N samples of size 3: "
I have no idea what you mean.
Are there different sizes of lightbulbs?
Are we choosing lightbulbs?
???
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