设随机变量X~B(4,0.2),则P{X﹥3}=()

设随机变量X~B(4,0.2),则P{X﹥3}=()
A、0.0016
B、0.0272
C、0.4096
D、0.8192
【正确答案】:A
【题目解析】:析:P(x﹥3)=P{x=4}=C44 (0.2)4(0.8)0=0.001 6