We need to find the probability that a student will winn a gift card of at leat $25.
We use probability formula:
[tex]Probability=\frac{\text{Favorable events}}{total\text{ events}}[/tex]
In this case, the total number of events is: 8
this is because we have 8 possible triangles as the result.
The favorable events are the number of triangle that have a value of at least $25, which are the following:
The only two favorable events are $25 and $50, so
Favorable events = 2
Substituting this into our probability formula:
[tex]Probability=\frac{\text{Favorable events}}{total\text{ events}}=\frac{2}{8}[/tex]
We can simplify this probability as 1/4, or as 0.25
Answer: 2/8=1/4=0.25
