Table tennis teams in nine countries have three Asian teams, which are divided into three groups by drawing lots, and three teams in each group play preliminaries.

Nine teams divided into groups A, B and C have possible results such as C93*C63*C33.

(1)∵ Three Asian national teams are divided into groups A, B and C, with 33 points for each team.

The remaining six teams were divided equally among Group A, Group B and Group C, with C62*C42*C22 points.

Therefore, each of the three groups has an Asian national team with a score of P33*C62*C42*C22.

∴ ask probability P=

P33*C62C42C22/C93*C63*C33

=9/28

(2) The event "at least two Asian national teams are in the same group" is the opposite of the event "three groups each have an Asian national team".

The probability of ∴ is 1-9/28 = 19/28.