Variables
Interpreting a Scatterplot
Pearson's correlation coefficient
Pearson's II
Random
100

The variable on the x-axis.

What is the explanatory variable?

100

Scatterplots are either positive or negative

What is the direction?

100

The symbol for Pearson's correlation coefficient.

What is r?

100

The strength of the association when r = 1.

What is a strong positive (linear) association?

100

The method to calculate r.

What is menu 4,1,4?

200

The variable on the y-axis

What is the response variable?

200
The scatterplots can be linear or non-linear.

What is the form?

200

The r value is positive the linear relationship is...

What is positive?
200

The strength of the association when r = 0.26

What is a weak positive (linear) association?

200

The relationship between variables.

What is correlation?

300

________ explains the __________. First missing variable.

What is the explanatory variable?

300

Scatterplots are described as weak, moderate or strong.

What is the strength?

300

Pearson's correlation coefficient measures...

What is an association (relationship)?

300

The strength of the association when r = -0.25

What is weak negative (linear) association?

300

Correlations doesn't mean causation

What is the truth?

400

_______ explains the _______. The second missing variable.

What is the response variable?

400
The association when EV increases RV increases

What is a positive?

400

The range of values for Pearson's correlation coefficient.

What is -1 to 1?

400

The strength of the association when r =-0.74.

What is a moderate negative (linear) association?

400

Ice creams cause forest fires.

What is false?

500

A person's height predicted from their wrist circumference. The explanatory variable is...

What is the wrist circumference?

500

The association when EV increases and RV decreases.

What is negative?
500
The association when r is close to zero.

What is no association?

500

The strength of the association when r = -0.156

What is no association?

500

Countries with high incidents of smoking will have high rates of heart disease.

What is false?

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