Where is the math u are talking about
I think the correct answer would be : (-8,3)
I hope this helps !
Answer:
d. 11.6
Step-by-step explanation:
The results of the first die and the second one are independent to each other. The expected value of Z is obtained, therefore, by summing the expected values of both X and Y, because Z = X+Y and X and Y are independent. As a result 
The same line! hope this helps! i’m not 100% sure so if i’m wrong don’t flame me