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考古題 Form28 sec3-Q20

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考古題 Form28 sec3-Q20

帖子liyun » 2006-09-20 15:10

請教

The probability is 1/2 that a certain coin will turn up heads on any given toss. If the coin is to be tossed three times. What is
the probability that on at least one of the tosses the coin will turn up tails?

A 1/8
B 1/2
C 3/4
D 7/8
E 15/16

謝謝
liyun
新手會員
新手會員
 
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帖子FrankChang » 2006-09-20 15:22

答案是D嗎!?
FrankChang
中級會員
中級會員
 
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地址: Taipei


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