Vocabulary

Permutation - A selection of a group of items or events from a set with regard to order. (Order is important.)

Combination - A selection of a group of items or events from a set without regard to order. (Order doesn't matter.)

 
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Question 2

Eight points are positioned in a circular pattern. You must draw line segments between the points. Each segment may connect only 2 of the points, and you may not retrace a segment once it has been drawn.

What is the total number of line segments possible after every point has been connected to every other point?

line segments
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