Question

he probability that X is at least 0.5 is
A. 0.
B. 1/4.
C. 1/2.
D. 3/4.

Answer 1

now if we go by mean = 1, x = 0.5 and SD = 1 then 1- 0.5 / 1 = 0.5? which would mean 1/2? Doesn't really add up, I would assume it would be 3/4 from the position...

Answer 2

@CliffSedge @kropot72

Answer 3

C. 1/2.... is it too you getting ?

Answer 4

This can be solved geometrically.

Answer 5

That's why I figured 3/4...