Answer:
-0.0526
Step-by-step explanation:
Let X be the random variable denoting the net gain(in dollars) for a single trial(one bet).
Assuming that each number in the wheel is equally likely, probability of the outcome being a victory is and probability of failure is . For a win, X takes value 35 and for a loss X takes value -1. So the model is,
The mean for one bet is
I believe the answer is 7 since 8x squared is 64x and subtract 4x=60x
60x/16x multiplied by 5/x-5. but i am not sure since i do not know the value of X sorry buddy, just trying to help
A= -81 + square root of 113
a<span>≈</span> -70.36985418
I think it is the 3rd one, but I could be wrong. please go check out my question and see if you can help.