gmatophobia
For each position on the board, we can have one of the two candidates elected. Therefore each position can be 'filled' in two ways. As there are four positions the number of ways to fill the four positions =
\(2 * 2 * 2 * 2 = 2^4 = 16\)
Option D
I do not conceptually understand this explanation. To me, the answer is not 2^4 but 4^2, the conceptual difference being that either of the two candidates can fill either of the four slots, thus, 4*4. The quoted explanation, however, says either of the four position can be filled by either of the two candidates but I do not think that is the case. Only two slots can be claimed by the two candidates, not all four.
Bunuel can you please help me understand?
EDIT: I thought the answer would be 4C2. Therefore, 4!/(2!2!) = 3*2 = 6. I got the wrong answer due to a conceptual gap.
There are 4 positions to be filled, and for each position, there are two candidates competing:
To determine the total number of ways these candidates can be elected to the Board, we simply multiply the options for each slot together:
Total ways = 2 (options for the first slot) * 2 (options for the second slot) * 2 (options for the third slot) * 2 (options for the fourth slot) = 2^4 = 16