Consider the following question: How does the mean body mass index (BMI) compare between US college football players and other males attending college? What would be the corresponding statistical population?
BMI = LaTeX: \frac{weight\:\left(kg\right)}{\lef t[height\:\left(m\right)\right]^2}

Period is the time it takes for one “cycle” to complete. in the parent sine function, period is 2*pi since sin(0) = 0, sin(pi/2) = 1, sin(pi) = 0, sin(3pi/2) = -1, and sin(2pi) = 0. at that point, the sequence repeats itself. i’m not sure if your graph is similar to the sine function since you didn’t provide a picture, but you can find the period by looking at a graph.

Well what if i told you it wouldn’t matter, because in the future the pony dies, depending on what choice you make