Is that suppose to be the problem?
So to find average, we add up the values, and divide it by how many values there are in total.
27 + 12 + 31 + 19 + 23 + 11 + 17 = 140.
There are 7 numbers. Which means we divide 140 by 7.
140 / 7 = 20 is the average.
Also, if you notice, most of the numbers "kind of" circulate around 20.
The sets are (1,-1) or (-1,1)
Lets see
Take until 4terms
#1
(1,-1)
(-1,1)
#2
(1,-1)
(-1,1)
Hence verified
Another set can be (0,0)
Proof:-


Hence verified.
Answer:
this difference indicates that the results are independent but not reliable.
F(-5)=3(-5)+4=-11
g(-2)=4(-2)^2+2=18