# Lecture 3: Independence

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## Lecture Topics

 Independence of two events Independence of a collection of events

## Recitation Problems and Recitation Help Videos

Review the recitation problems in the PDF file below and try to solve them on your own. Two of the problems have an accompanying video where a teaching assistant solves the same problem.

### Recitation Help Videos

PROBLEM # PROBLEM TITLE PROBLEM SOLVED BY
2 {'English - US': '/courses/electrical-engineering-and-computer-science/6-041sc-probabilistic-systems-analysis-and-applied-probability-fall-2013/unit-i/lecture-3/a-random-walker/MIT6_041SCF13_Ch1_Random_Walker_300k.srt'}A Random Walker (00:05:52) Kuang Xu
3 {'English - US': '/courses/electrical-engineering-and-computer-science/6-041sc-probabilistic-systems-analysis-and-applied-probability-fall-2013/unit-i/lecture-3/communication-over-a-noisy-channel/MIT6_041SCF13_Noisy_Channel_300k.srt'}Communication over a Noisy Channel (00:19:53) Jimmy Li

## Tutorial Problems and Tutorial Help Videos

Review the tutorial problems in the PDF file below and try to solve them on your own. Two of the problems have an accompanying video where a teaching assistant solves the same problem.

### Tutorial Help Videos

PROBLEM # PROBLEM TITLE PROBLEM SOLVED BY
2 {'English - US': '/courses/electrical-engineering-and-computer-science/6-041sc-probabilistic-systems-analysis-and-applied-probability-fall-2013/unit-i/lecture-3/network-reliability/MIT6_041SCF13_No_9_Ch1_NetworkReliability_300k.srt'}Network Reliability (00:17:24) Kuang Xu
3 {'English - US': '/courses/electrical-engineering-and-computer-science/6-041sc-probabilistic-systems-analysis-and-applied-probability-fall-2013/unit-i/lecture-3/a-chess-tournament-problem/MIT6_041SCF13_A_Chess_Tournament_Problem_300k.srt'}A Chess Tournament Problem (00:18:33) Katie Szeto

## Problem Set and Solutions

Work the problems on your own and check your answers when you're done. Problem set 2 covers Lectures 2 and 3.

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