Please revise problem statement to indicate that summation is required, such as:
"the function avg_gain(odds,bets) should return the SUM of each bet's average gain (averaged for each possible outcome)"
It is not obvious from the example.
As stated by David, it is required to sum the averages after the calculation.
Maximum running product for a string of numbers
Make an awesome ramp for a tiny motorcycle stuntman
Return the first and last characters of a character array
Largest Prime Number
Divide by 4
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