Traditional Culture Encyclopedia - Travel guide - During the May Day holiday, Meihe Company organized some employees to travel to A, B and C, and the types and quantities of tickets purchased by the company were drawn into strips.

During the May Day holiday, Meihe Company organized some employees to travel to A, B and C, and the types and quantities of tickets purchased by the company were drawn into strips.

( 1)30; 20; (2) ;

(3) The list of all possible outcomes is as follows:

Or draw a tree diagram as follows:

* * * There are 16 possible outcomes, and the possibility of each is the same. Among them, there are six results for Xiao Zhang to get a ticket: (2, 1), (3, 1), (3,2), (4, 1), (4,2).

The probability of Xiao Zhang getting the ticket is: Then the probability of Xiao Li getting the ticket is.

This rule is unfair to both Xiao Zhang and Xiao Li.