You choose a marble at random from a bag containing 3 yellow marbles, 8 red marbles, and 4 blue marbles. you pick a second marble without replacing the first. find each probability.
me pl ! : '(

First would be Red Marbles Second would be Blue and last Yellow. (remember this is not exact)  
I'm sure this is good! :D

Can you please specify what probabilities you are looking for?

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.