mindfrees 当前离线
中级会员
Q22:
When tossed, a certain coin has equal probability of landing on either side. If the coin is tossed 3 times, what is the probability that it will land on the same side each time?
A:1/8
B:1/4
C:1/3
D:3/8
E:1/2
Answer: B 为什么是B阿
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