The answer for this question is letter D.
This is because correlation coefficient focuses on the linear relationship between two variables. The numbers between -1 and 1 should be one of the value related to the bill. As you can that letter D is the most closest and realistic answer.
Step-by-step explanation:
the answer is B. y (4 + z)
Answer:
(3,9)
Step-by-step explanation:
u=(1,3) and v=(2,6),
u+v = (1+2, 3+6)
=(3,9)