Question 733667
Flipping a coin 10 times. The crown currency brings with probability 0.57. If we total k heads you win 2 ^ k €. 
What is the average profit in this game? 
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P(k heads) = 10Ck(0.57)^k*(0.43)^(10-k)
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Average profit = k*[P(k heads)] = k[10!/(10-k)!*k!*k(0.57)^k*0.43^(10-k)]
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Cheers,
Stan H.