Two students, Zhang Bin and Wang Hua, designed a plan to get tickets to watch the football match: Zhang Bin: As the picture shows, they designed a self-help ticket.

Zhang Bin design scheme:

Because P (Zhang Bin got the admission ticket) = 360-(100+70) 360 =1936,

P (Wang Hua got the admission ticket) = 100+70 360 = 17 36

Because of 1936 > 1736, Zhang Bin's design scheme is unfair.

Wang Hua's design scheme:

The list of all possible outcomes is as follows:

∴P (Wang Hua got the admission ticket) =P (the sum is even) = 5 9

P (Zhang Bin got the admission ticket) =P (the sum is not even) = 4 9 because 59 > 49,

Therefore, Wang Hua's design scheme is also unfair.

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