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lets say I have a population of 120, and I randomly select 15 at a time, 72 times. Whenever I select my batch of 15, I put them back in the pool, so they might be selected again. How many from the total pool should I expect never got picked? Thanks for the help.

Hello all, hope everyone is studying hard for Monday :haha: I am currently doing 6 subjects, one of which includes Mathematics. Now because of my low marks I am assuming that this will not be calculated in my UAI, but a family friend seems to think differently. So here's my question...

The other night i saw this on the news. A soccer player was shot bu a guart at point blank range with a rubber bullet. the article is as follows- AN Argentine soccer player was shot with a rubber bullet while he and several teammates tried to stop a riot involving opposing fans. San Martin...