juanmiguel5648 juanmiguel5648
  • 11-05-2018
  • Mathematics
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In order to conduct a certain experiment, four students are randomly selected from a class of 20. how many different groups of four stdents are possible

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baileesh2 baileesh2
  • 14-05-2018
20x4=80 
i am assuming this is correct this is how i learned just take all numbers in equation and multiply by each other 
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