Mary as the tresurer, and susan as the secretary could be formed from this group. what is the probability this executive will be formed?
2007-01-07 07:25:04 · 3 answers · asked by skye_macd 1 in Science & Mathematics ➔ Mathematics
The possibilities for president, treasurer and secretary are:
10 for president * 9 for treasurer (remaining people after president is chosen) * 8 for secretary (remaining people after treasurer is chosen) or 720 possibilities.
Only one of those 720 is Peter, Mary, Susan as president, treasurer and secretary in that order.
1/720 is the probability.
2007-01-07 07:32:17 · answer #1 · answered by Steve A 7 · 0⤊ 0⤋
10 x 9 x 8 = 720 possible executives..
1 / 720
2007-01-07 07:32:30 · answer #2 · answered by teekshi33 4 · 0⤊ 0⤋
Since there are 10 people, there are 10x9x8 = 720 ways to choose the executive committee.
The way you mentioned is just one way, so the probability would be:
1/720
2007-01-07 07:32:30 · answer #3 · answered by Jim Burnell 6 · 0⤊ 0⤋