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
increases.
B.
When the value of
x
is negative, the value of
y
negative.
C.
When the value of
x
increases, the value of
y
decreases.
D.
When the value of
x
increases, the value of
y
does not necessarily increase or decrease.
Hint
2.
Which scatter plot shows that
x
and
y
have no correlation?
A.
B.
C.
D.
Hint
3.
Find the equation for the flowchart.
A.
= 1
B.
- 9 = 1
C.
- 1 = 9
D.
- 9 = 1
Hint
4.
Which scatter plot shows that
x
and
y
have a positive correlation?
A.
B.
C.
D.
Hint
5.
What is the mode of the number of rainy days each month?
A.
5
B.
6
C.
8
D.
7
Hint