- #1
kylebutler
- 5
- 0
Homework Statement
z = 2, P(Z=z)=1/6
z = 3, P(Z=z)=1/6
z = 5, P(Z=z)=1/6
z = 7, P(Z=z)= x
z = 11, P(Z=z)= y
I'm supposed to find x and y given that E(Z)= 5+2/3
I have no idea how to do this. All I got is 7x+11x=4 but I can't solve this