Answer is in the photo. I couldn't attach it here, but uploaded it to a file hosting. link below! Good Luck!
cutt.ly/wzUiVyK
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
answer: 5