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There are 8 people at a business meeting. How many different groups of 4 can you make?

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please explain how to figure it out. thanks

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  1. It is callled 8C4. You use 8C4, not 8P4, when you are making selections only and not considering the number of arrangements.

    Press a few buttons on a calculator and it will do this calculation: (8X7X6X5)/(1X2X3X4) = 70.

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