Which statement is true about whether a and b are
independent events?
o
o
a and b are independent events because p(aib) = p(a)
= 0.18
a and b are independent events because p(aib) = p(a)
= 0.4.
a and b are not independent events because p(ab) =
0.4 and p(a) = 0.18.
a and b are not independent events because p(aib) =
0.18 and p(a) = 0.4.
o
o

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.