Answer:



Step-by-step explanation:
Given



Solving (a): n
To solve for n;
We make use of

Substitute values for XY and XZ



Divide through by -6

Solving (b) XY

Substitute 3 for n



Solving (c): XZ


Answer:
It could be because it shows trends and shows outliers and all the data in a way that makes sense
Step-by-step explanation:
Answer:
x2 1-
Step-by-step explanation:
Answer:
0
Step-by-step explanation:
They all seem to be plotted correctly in accordance with the graph