Exercise

# Exercise 11 - Difference in Expected Values Between Polls

Using what we learned by answering the previous questions, what is the expected value of \(\bar{Y}_{2} - \bar{Y}_1\)?

Instructions

**50 XP**

##### Possible Answers

- $$(b_2 - b_1)^2$$
- $$b_2 - b_1/\sqrt(N)$$
- $$b_2 + b_1$$
- $$b_2 - b_1$$