Answer: shouldn't it be -11?
Step-by-step explanation:
im p sure to find the AV its just like the positive version of a number. Kinda rusty since i did this a long time ago lol
The first one, decreasing then increasing
Negative, because Correlation and slope have the same direction (Sxy will be negative)
Answer:
x should be 1
I think if you substitute it will just be the index 2 that remains , not sure though .You should probably ask your teacher for assistance
I believe 60 degree is your answer
