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What if I had an unfair coin flip game where a head had a likelihood of one in a million bu realization of $1,000,000 while a
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The probability of head has an amount of $ 1000000 is = 1 / 1 million = 1 / 1000000 = 0.000001
The probability of tail has an amount of $ 100000 is = 1 - ( 1 /1 million) = 1 - 0.000001 = 0.999999

Expected value of the game = Amount of head x probability of head + Amount of tail x probability of tail
Expected value of the game = $ 1000000 x 0.000001 + $ 100000 x 0.999999
= $ 1.0 + $ 99999.9
= $ 100000.9

In contrast the result of flip of a coin has a 50:50 probability of head and tail

Therefore
Expected value of the game = $ 1000000 x 0.5 + $ 100000 x 0.5
= $ 500000 + $ 50000
​​​​​​​= $ 550000

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