Statistical Education Resource Kit

Expected Value & Coincidences

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Table of Contents

Expected Value Coincidences 

Roulette Color Bet 

Is the bet fair? 

Color Bet versus Number bet 

Prob of Five Straight Losses 

A Spectacular Coincidence ? 

Was Associated Press Right ? 

The correct analysis 

The prob that the 15 states all differ 

Prob at least two states are same 

The Birthday Problem 

High Number of Pairs of People 

The Solution 

Prob All 25 Have Different Birthdays 

The Answer 

For 50 People

Author: Bob Heckard 

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This web page was submitted by Bob Heckard: rho@stat.psu.edu