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研究所、轉學考(插大)◆統計學
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108年 - 108政大風管系碩士班招考︰統計學#99521
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4.Do you agree the following statement: "correlation implies causation"? Please clearly specify your reasons. (10%)
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四、請利用力矩分配法計算各桿件端點力矩。桿件 EI 值比例標示於下圖。 （25 分）
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1.What are the classical regression assumptions? (20%)
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2.What does a p-value mean? Show your understanding of a p-value. (10%)
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3.Assume X follows an exponential distribution with a mean. This function can be described as follows:What is the expected value of X given X ＞1? (10%)
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5.Suppose a data set contains 8 observations as follows 7.26, 7.27, 7.24, 7.29, 7.28, 7.25, 7.23 and 7.32. Please test whether the mean of these observations is equal to 7.25 under a statistical significance level of 0.05. () (10%)
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6. Compare and contrast interval scale and ratio scale. (10%)
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(1) Find t. (10%)
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(2) Find the marginal probability function of Y. (10%)
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(3) Find the conditional probabilty of Ygiven XE x. (10%)
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Problem 1 (8 points) Evaluate the integral
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