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高二英语期末考试卷
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试题原创 命题意图:基础题。本题属于1-2第一章的相关内容,为了形成体系。等概率性是抽样的根本。 答案:D 4、下列函数中,导函数是奇函数的是( ) A、B、C、D、 试题原创 命题意图:基础题。考核求导公式的记忆 答案:A 5、若可导函数f(x)图像过原点,且满足,则=( ) A、-2 B、-1 C、1 D、2 试题原创 命题意图:基础题。考核对导数的概念理解。 答案:B 6、下列说法正确的有( )个 ①、在对分类变量X和Y进行独立性检验时,随机变量的观测值越大,则X与Y相关可信程度越小; ②、进行回归分析过程中,可以通过对残差的分析,发现原始数据中的可疑数据,以便及时纠正; ③、线性回归方程由n组观察值计算而得,且其图像一定经过数据中心点; ④、若相关指数越大,则残差平方和越小。
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高二英语下学期期末考试试题及答案
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