Re: [計量] 兩題計量想要請問一下^^
※ 引述《lbebel (USC)》之銘言：
: 1.three friends are playing a game in which each person simutaneously
: displays one ofthree hand signs:a clenched fist,an open plam,
: two extended fingers. how many different combinations of the
: signs are possible?
這題問組合，三人同時猜拳會有幾種組合？
三人出相同： 3種
兩人出相同： 3 * 2 = 6種
三人都不同： 1種
所以總共10種，列舉如下：
剪剪剪 布布布 石石石
剪剪布 布布剪 石石剪
剪剪石 布布石 石石布
剪石布
: 2.
: during a certain chess tournament, if each of six players play every
: other player exactly twice, how many matches will be played
: during the tournament?
: 拜託大家幫幫我^^
六個人每兩人出來比兩場，所以是 (6C2) * 2 = 30
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討論串 (同標題文章)
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