Three students out of a group of 10 seniors will be chosen to speak in front of the school. What is the probability that Ben, Mark, and Ty will be chosen
hm, if order does not matter then it is 3/10 that one of the 3 is chosen assuming that one was chosen, we now have a probablity of 2/9 then the last is 1/8
so the ending probablity will be 3/10 times 2/9 times 1/8 or 6/720 or 1/120
the probablity will be 1/120
if the order does matter then it is 1/10 times 1/9 times 1/8 or 1/720 because there is 1 choice for each