选择题：Write an essay based on the chart below.In your writing,you should（1）interpret t

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题目内容：

Write an essay based on the chart below.In your writing,you should（1）interpret the chart,and（2）give your comments.You should write about 150 words neatly on the ANSWER SHEET.（15 points）

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To protect his new invention,he took out a patent（ ）it.on

To protect his new invention,he took out a patent（ ）it.on

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She was very tired,and（ ）no mood for dancing.in

She was very tired,and（ ）no mood for dancing.in

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设总体X的概率密度为X1，X2，…，Xn为来自该总体的简单随机样本。（Ⅰ）求θ的矩估计量；（Ⅱ）求θ的最大似然估计量。

设总体X的概率密度为X1，X2，…，Xn为来自该总体的简单随机样本。（Ⅰ）求θ的矩估计量；（Ⅱ）求θ的最大似然估计量。

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设f（x）是周期为2的连续函数。（Ⅰ）证明：对任意的实数t，有（Ⅱ）证明：是周期为2的周期函数。

设f（x）是周期为2的连续函数。（Ⅰ）证明：对任意的实数t，有（Ⅱ）证明：是周期为2的周期函数。

分类：研究生入学  题型：选择题
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