Question

# You draw and keep a single bill from a hat that contains a ​\$11​, ​\$55​, ​\$20...

You draw and keep a single bill from a hat that contains a ​\$11​, ​\$55​, ​\$20 and ​\$100 bill. What is the expected value of the game to​ you?

we calculated the expected value as

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