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  5. HarvardX Data Science Module 4 - Inference and Modeling

Exercise

Exercise 9 - Expected Value and Standard Error of Poll 1

Suppose we define \(\bar{Y}_1\) as the average of poll results from the first poll and \(\sigma_1\) as the standard deviation of the first poll.

What is the expected value and standard error of \(\bar{Y}_1\)?

Instructions

50 XP

Possible answers