50 persons tossing coins

  • #1
Knut.Angstrom
1
0

Homework Statement


50 persons are asked to toss a coin at the same time. This is repeated until all persons got head at least on time. What is the average number times for this to happen


Homework Equations





The Attempt at a Solution

 

Answers and Replies

  • #2
tiny-tim
Science Advisor
Homework Helper
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Welcome to PF!

Hi Knut.Angstrom! Welcome to PF! :wink:

Show us what you've tried, and where you're stuck, and then we'll know how to help! :smile:
 

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