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A beverage company recruits an employee and now determines the salary level through testing. The company prepared two different drinks, a total of 8 cups.

Solution: (1) The number of cups of beverage A is X=0, X= 1, X=2, X=3 and X=4 respectively.

Their probability distributions are:,,,

, ,

∴X's distribution list is

three

four

(2) 。