Statistics
Probability
Level
2
A printed circuit board has 8 different locations in which a component can be placed. If 4 different components are to be placed on the board, how many designs are possible?
24
1680
20160
40320
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1 solution
( 8 − 4 ) ! 8 ! = 4 ! 8 x 7 x 6 x 5 x 4 ! = 8x7x6x5=1680