The quality assurance department of a chair factory samples daily production to test for the strength of the chairs being produced. What is the population they are testing for quality? All the chairs they produce
One week’s production
All chairs with the same style.
One day’s production.

The answer is a hope i

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.