Scatter Plots and Predictions

As x increases, y decreases

As x increases, y increases

As x decreases, y decreases

Weak Negative

Weak Positive

Strong Negative

Strong Positive

y = -5/2x + 20

y = -x + 19

y = x + 20

y = 2/3x + 15

y=-5/4x +20

≅100 pages

≅170 pages

≅60 pages

≅20 pages

graph 1

graph 2

graph 3

graph 4

r= -0.9

r= 0.9

r=-0.5

r=0.5

There is a strong negative correlation between exercise and blood pressure.

There is a weak negative correlation between exercise and blood pressure.

There is a strong positive correlation between exercise and blood pressure.

There is no correlation between exercise and blood pressure.

There is no correlation between sales and age.

There is a strong positive correlation between sales and age.

There is a strong negative correlation between sales and age.

There is a weak negative correlation between sales and age.

There is a strong positive correlation between studying and grades.

There is a strong negative correlation between studying and grades.

There is a weak positive correlation between studying and grades.

There is a weak negative correlation between studying and grades.

It rained and the ground is wet.

Ice cream sales increase as temperature increases.

I put water in the freezer and now I have ice.

The alarm clock went off and I woke up.

Temperature and the amount of people at the beach.

Being happy and being a better student.

An insect ate poison and it died.

High social media usage and reduced grades.

Car ran out of gas and being stranded on the side of the road.

Recess time and number of friends.

High social media usage and reduced grades.

Car ran out of gas and being stranded on the side of the road.

Recess time and number of friends.

75

37

72

6

12

13

19

8

12

15

19

First Quartile

Median

Third Quartile

Mean

The spreads of the low temperatures for Reybold and Picktown are not the same

Neither box plot is symmetrical

The median low temeratures for Reybold and Picktown are different

The lower extreme for Picktown is approximately 5 degrees lower than the lower extreme for Reybold

30

14

28

16

30

14

28

16