Which graph represents a phase shift of pi/2 units right for the graph of y = cosx?

we can't see the graphs but we can say a shift to the right of π/2, which is a leading phase shift, gives

answer: pick the graph that's sin x

answer: expected value of x = 1.0

step-by-step explanation:

p(x=0) = 0.25

p(x=1) = 0.50

p(x=2) = 0.25

expected value for x = 0×0.25 + 1×0.5 + 2×0.25 = 1.0

add an image, and i will answer

step-by-step explanation: