2018大学慕课答案 属性数据分析(厦门大学) 最新大学MOOC满分章节测试答案
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本课程起止时间为:2018-01-30到2018-01-30
本篇答案更新状态:已完结
【作业】第一周 Chapter1 Introduction homework1
1、 问题:A coin is flipped twice. Let Y =number of heads obtained, when the probability of a head for a flip equals π. a. Assuming π =0.50 , specify the probabilities for the possible values for Y, and find the distribution’s mean and standard deviation. b. Find the binomial probabilities for Y when π equals (i) 0.60, (ii) 0.40. c. Suppose you observe y =1 and do not know π. Calculate and sketch the likelihood function. d. Using the plotted likelihood function from (c), show that the ML estimate of π equals 0.50. 点我阅读全文