Final answer:
The probability of randomly selecting a team of 3 players that does not include the captain or vice-captain is 2/7.
Step-by-step explanation:
To find the probability of randomly selecting a team of 3 players that does not include the captain or vice-captain, we need to determine the number of favorable outcomes and the total number of possible outcomes.
There are 5 players left in the hat after the captain and vice-captain are excluded. The number of ways to choose 3 players from these 5 is given by the combination formula: C(5, 3) = 5! / (3!(5-3)!) = 10.
Since there are 7 players in total, the total number of possible outcomes is given by the combination formula: C(7, 3) = 7! / (3!(7-3)!) = 35.
Therefore, the probability of randomly selecting a team of 3 players that does not include the captain or vice-captain is 10/35, which simplifies to 2/7.