题目信息
When a certain coin is flipped, the probability of heads is 0.5. If the coin is flipped 6 times, what is the probability that there are exactly 3 heads?
A:$$\frac{1}{4}$$
B:$$\frac{1}{3}$$
C:$$\frac{5}{16}$$
D:$$\frac{31}{64}$$
E:$$\frac{1}{2}$$
参考答案及共享解析

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已选答案:
正确答案:
C:$$\frac{5}{16}$$
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题目来源
Magoosh