Answer:
Y=9
Step-by-step explanation:
8y/8
72/8
=9
Answer:
Following are the solution to the given choices:
Step-by-step explanation:
In point a:
Calculating the variance of the test grade:

In point b:


The relationship between the top 20 students is also slight, so the top 20 students are more university-like than all secondary students.
Answer:
the topmost one maybe?
Step-by-step explanation:
I'm guessing since X & Y are negative, (it's written X,Y,Z, right?)
The point would be reducing on the X&Y axes, an since Z is positive, it would increase on the Z axis