[計量] 三題問題請教
1. COL A: The number of ways to exchange a $100 bills for
$5,$10 or $50.
COL B: 17
ANSWER: A
2. How many possible committees can be formed from a group of seven
people if each committee can have any number of members from one to seven?
ANSWER: 127
3. Before the start of a horse race, and based on the past performance of the
horse entered, the spectators are told that the chances are 4 to 1 that Aegis
will win. What is the probability that Aegis will lose?
ANSWER: 1/5 (the chances are 4 to 1 that Aegis will win這一句話看不太懂...)
有哪位大大救救我嗎?? 大感謝~
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