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?
~$\frac{1}{8}$~
~$\frac{1}{4}$~
~$\frac{1}{3}$~
~$\frac{3}{8}$~
~$\frac{1}{2}$~
用独立重复实验发生的概率公式求就可以了,C12*1/2^3*1/2^0
登录 或 注册 后可以参加讨论