Can someone please help?

Hello! I would love to help, unfortunately, on you are only allowed to post 3 pictures at a time! Also, I am doing my own work right now, so I can't help you at the moment :(

  n=   0.0000 - 0.3750 i  

  n=   0.0000 + 0.3750 i

step-by-step explanation:

one of these should be correct

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