Your friend has a coin-flipping game that he wants you to play. It cost you $2 each time. You flip two fair coins. If both coins are tails, then you get nothing back. If one is head and one is tail, you get $1 back. If both coins are heads, then you get $5 back. What is the expected value of the game? Explain what this value means.

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Your friend has a coin-flipping game that he
wants you to play. It cost you $2 each
time. You flip two fair coins. If both coins are
tails, then you get nothing back. If one is
head and one is tail, you get $1 back. If both
coins are heads, then you get $5 back. What
is the expected value of the game? Explain
what this value means.
The Declaration of Independence is
approximately 7,000 letters long. If you were
to pick 7,000 letters at random, what is the
probability that your letters spell out the entire
Declaration of Independence? What does the
Infinite Monkey Theorem say about this?
Transcribed Image Text:Your friend has a coin-flipping game that he wants you to play. It cost you $2 each time. You flip two fair coins. If both coins are tails, then you get nothing back. If one is head and one is tail, you get $1 back. If both coins are heads, then you get $5 back. What is the expected value of the game? Explain what this value means. The Declaration of Independence is approximately 7,000 letters long. If you were to pick 7,000 letters at random, what is the probability that your letters spell out the entire Declaration of Independence? What does the Infinite Monkey Theorem say about this?
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