《概率论与数理统计》课程教学资源（课件讲稿）第四章 随机变量的数字特征

概率论是研究随机事件的规律性的一个数学分支,直观地说是指这样的事件:在 一次试验中,它出现与否是具有偶然性的, 但是在大量重复试验中,它却是具有内在的必然性即规律性的

1.填空题 (1)设(X,Y)的联合分布律为

河海大学：《概率论》习题四及课余练习解答

河海大学：《概率论》习题十练习解答

河海大学：《概率论》习题十四及课余练习解答

10.1 Introduction 10.2 Empirical Studies and Statistical Inference 10.3 Important Features of Big Data 10.4 Big Data Analysis and Statistics 10.5 Machine Learning and Statistics 10.6 Conclusion

9.1 Introduction to Hypothesis Testing 9.2 Neyman-Pearson Lemma 9.3 Wald Test 9.4 Lagrangian Multiplier (LM) Test 9.5 Likelihood Ratio Test 9.6 Illustrative Examples 9.7 Conclusion

6.1 Population and Random Sample 6.2 Sampling Distribution of Sample Mean 6.3 Sampling Distribution of Sample Variance 6.4 Student’s t-Distribution 6.5 Snedecor's F Distribution 6.6 Sufficient Statistics 6.7 Conclusion

4.1 Introduction 4.2 Discrete Probability Distributions 4.3 Continuous Probability Distributions 4.4 Conclusion