Worksheet
1
State whether the following scatter plots show a linear relationship, a nonlinear relationship, or no relationship:
a
5
10
15
20
x
5
10
15
20
y
b
5
10
15
20
x
5
10
15
20
y
c
5
10
15
20
x
5
10
15
20
y
d
5
10
15
20
x
5
10
15
20
y
e
5
10
15
20
x
5
10
15
20
y
f
5
10
15
20
x
5
10
15
20
y
g
5
10
15
20
x
5
10
15
20
y
h
5
10
15
20
x
5
10
15
20
y
i
5
10
15
20
x
5
10
15
20
y
j
5
10
15
20
x
5
10
15
20
y
k
5
10
15
20
x
5
10
15
20
y
l
5
10
15
20
x
5
10
15
20
y
m
5
10
15
20
x
5
10
15
20
y
n
5
10
15
20
x
5
10
15
20
y
2
State whether the following scatter plots show a positive correlation, a negative correlation, or neither:
a
5
10
15
20
x
5
10
15
20
y
b
5
10
15
20
x
5
10
15
20
y
c
5
10
15
20
x
5
10
15
20
y
d
5
10
15
20
x
5
10
15
20
y
e
5
10
15
20
x
5
10
15
20
y
f
5
10
15
20
x
5
10
15
20
y
g
5
10
15
20
x
5
10
15
20
y
h
5
10
15
20
x
5
10
15
20
y
i
5
10
15
20
x
5
10
15
20
y
j
5
10
15
20
x
5
10
15
20
y
3
Describe the relationship between the variables observed in the following scatter plots in terms of strength and direction:
a
5
10
15
20
x
5
10
15
20
y
b
5
10
15
20
x
5
10
15
20
y
c
5
10
15
20
x
5
10
15
20
y
d
5
10
15
20
x
5
10
15
20
y
e
5
10
15
20
x
5
10
15
20
y
f
5
10
15
20
x
5
10
15
20
y
g
5
10
15
20
x
5
10
15
20
y
4
Describe the relationship observed between the variables in the following table of values in terms of strength and direction:
a
| x | 1 | 2 | 2 | 3 | 6 | 5 | 4 | 5 | 5 | 4 |
|---|---|---|---|---|---|---|---|---|---|---|
| y | 2 | 3 | 5 | 6 | 1 | 2 | 4 | 7 | 5 | 2 |
b
| x | 4 | 15 | 10 | 16 | 9 | 17 | 5 | 8 | 6 | 14 |
|---|---|---|---|---|---|---|---|---|---|---|
| y | 20 | 75 | 52 | 81 | 43 | 85 | 24 | 41 | 31 | 69 |
c
| x | 1 | 3 | 5 | 8 | 9 | 12 | 13 | 16 | 18 | 20 |
|---|---|---|---|---|---|---|---|---|---|---|
| y | 48 | 106 | 103 | 60 | 33 | 13 | 111 | - 6 | 38 | 66 |
d
| x | 46 | 25 | 35 | 95 | 39 | 96 | 17 | 45 | 24 | 86 |
|---|---|---|---|---|---|---|---|---|---|---|
| y | 4.2 | 2.6 | 3 | 9.7 | 4.4 | 9.5 | 1.5 | 4.7 | 2.7 | 8.6 |
e
| x | 11 | 8 | 12 | 14 | 17 | 20 | 9 | 13 | 3 | 15 |
|---|---|---|---|---|---|---|---|---|---|---|
| y | - 12 | - 7 | - 11 | - 14 | - 16 | - 21 | - 8 | - 13 | - 2 | - 14 |
f
| x | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
|---|---|---|---|---|---|---|---|---|---|---|
| y | 9.9 | 5.05 | 2.30 | 1.35 | 1.9 | 1.40 | 1.43 | 0.15 | 0.11 | 0.6 |
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