Eight trials are simulated. The results are shown in the table. Simulation
109
105
112
110
115
106
108
109
What is the estimated margin of error, using standard deviation?
Enter your answer, rounded to two decimal places in the box

Here for a good time of free question

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.

2+1=3 that’s your answer