Jamie takes at random a counter from the bag and records the colour. red : blue : green = 1: 3: 7 jamie does this a number of times. he records a total of 68 blue counters. work out an estimate for the total number of times jamie takes a counter from the bag.

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.