A.密度函数曲线关于y轴对称
B.密度函数曲线的峰值低于标准正态分布
C.尾部概率比标准正态分布大
D.当自由度很大时可用标准正态分布近似
第8题
A、F(x, +∞)=FX(x)
B、F(x, -∞)=FX(x)
C、F(+∞, x)=FX(x)
D、F(-∞, x)=FX(x)
第9题
A、Achieving good government through non-action.
B、Use "rites" to regulate the relationship within the aristocracy.
C、A state of mind to gain spiritual peace and tranquility.
D、Respecting and following the way of nature without destroying natural harmony.
为了保护您的账号安全,请在“上学吧”公众号进行验证,点击“官网服务”-“账号验证”后输入验证码“”完成验证,验证成功后方可继续查看答案!