1.
What is implied when it is said that
x
and
y
have a negative correlation?
A.
When the value of
x
increases, the value of
y
decreases.
B.
When the value of
x
increases, the value of
y
increases.
C.
When the value of
x
increases, the value of
y
does not necessarily increase or decrease.
D.
When the value of
x
is negative, the value of
y
negative.
Hint
2.
Which scatter plot shows that
x
and
y
have no correlation?
A.
B.
C.
D.
Hint
3.
Make a flowchart for the expression.
.
A.
B.
C.
D.
Hint
4.
Use the flowchart to backtrack and find the solution.
A.
7
B.
9
C.
8
D.
18
Hint
5.
Which scatter plot shows that
x
and
y
have a positive correlation?
A.
B.
C.
D.
Hint