Answer:
The expected win of a coin flip in dollars is 1.25.
Step-by-step explanation:
To find the expected win of a coin flip, we multiply the probability of each outcome by their earnings, and then add them.
We have that:
3/4 probability of heads. If heads, you win $2.
1/4 probability of tails. If tails, you lose $1.
What is the expected win of a coin flip in dollars?
[tex]E = 2\frac{3}{4} - 1\frac{1}{4} = \frac{2*3 - 1*1}{4} = \frac{6-1}{4} = \frac{5}{4} = 1.25[/tex]
The expected win of a coin flip in dollars is 1.25.
