# Econ 103

## Grades and Questions:

Your grades are posted on Canvas. If you have questions, post them on Piazza. My office hours are on Tuesdays from 8-9AM and on Wednesdays from 4-5PM (right before class). If you need to make an appointment, just email me.

## Course Documents:

- Syllabus
- How to do well in Econ 103: Some tips for the course.
- Combinations and Permutations: A review
- Random Variables Handout Useful discussion about probability distributions: NYU Stern, Cloudera
- 7 Tips for Interpreting Macroeconomic Data (Jason Furman, CEA Chairman) [pdf version]
- Confidence Interval Refinement (Add 2 Successes and 2 Failures)

### Forecasting and Polling Module

- Overview of Common Issues in Polling and Survey Design (Source: Pew Research)
- Slides

## R Project Resources:

## Lectures:

- Chapter 1 Background and Motivation [Quiz]
- Chapter 2 Summary Statistics and Z-Scores [Quiz]
- Chapter 3 Probability [Quiz]
- Chapter 4 (Updated) Random Variables (Discrete Version) [Quiz] [Video]
- Chapter 5 Random Variables (Continuous Version) [Quiz][Video1][Video2]
- Chapter 6 Sampling and Bias [Quiz]
- Chapter 7 Confidence Intervals [Video]
- Chapter 8 Hypothesis Testing [Video1] [Video2] [Video3] [Quiz]
- Chapter 9 Regression [Video]

## Practice Exams:

Generously provided by Frank DiTraglia

### Midterm 1

- Fall 2012 [Solutions]
- Spring 2013 [Solutions]
- Fall 2013 [Solutions]
- Spring 2014 [Solutions]
- Fall 2014 [Solutions]
- Spring 2015 [Solutions]
- Fall 2015 [Solutions]
- Spring 2016 [Solutions]

### Midterm 2

- Fall 2012 [Solutions]
- Spring 2013 [Solutions]
- Fall 2013 [Solutions]
- Spring 2014 [Solutions]
- Fall 2014 [Solutions]
- Spring 2015 [Solutions]
- Fall 2015 [Solutions]
- Spring 2016 [Solutions]

### Final

- Fall 2012 [Solutions]
- Spring 2013 [Solutions]
- Fall 2013 [Solutions]
- Spring 2014 [Solutions]
- Fall 2014 [Solutions]
- Spring 2015 [Solutions]
- Fall 2015 [Solutions]

## Homework:

#### Week 1

#### Week 2 [Solutions]

#### Week 3 [Solutions]

- Textbook Problems for Chapter 3
- R Tutorial 3 [Solutions]
- More Details on the Secretary Problem (Dating Problem)