Essential ACT Science Skills - ACT Science
Card 0 of 295
What is a positive correlation?
What is a positive correlation?
When one variable increases, the other increases, too
When one variable increases, the other increases, too
Compare your answer with the correct one above
What is a negative correlation?
What is a negative correlation?
When one variable increases, the other decreases
When one variable increases, the other decreases
Compare your answer with the correct one above
What does “direct relationship” mean?
What does “direct relationship” mean?
Both variables move in the same direction at a consistent rate.
Both variables move in the same direction at a consistent rate.
Compare your answer with the correct one above
What does “inverse relationship” mean?
What does “inverse relationship” mean?
As one variable increases, the other decreases
As one variable increases, the other decreases
Compare your answer with the correct one above
What is a dependent variable?
What is a dependent variable?
The variable that is measured or observed in an experiment.
The variable that is measured or observed in an experiment.
Compare your answer with the correct one above
What is an independent variable?
What is an independent variable?
The variable that is changed or controlled by the experimenter.
The variable that is changed or controlled by the experimenter.
Compare your answer with the correct one above
On a graph what does the x-axis usually represent?
On a graph what does the x-axis usually represent?
The independent variable.
The independent variable.
Compare your answer with the correct one above
On a graph what does the y-axis usually represent?
On a graph what does the y-axis usually represent?
The dependent variable.
The dependent variable.
Compare your answer with the correct one above
What does a steep slope on a graph indicate?
What does a steep slope on a graph indicate?
A rapid or strong rate of change.
A rapid or strong rate of change.
Compare your answer with the correct one above
What does a flat horizontal line on a graph show?
What does a flat horizontal line on a graph show?
No change — the value is constant.
No change — the value is constant.
Compare your answer with the correct one above
What does it mean when data “fluctuates”?
What does it mean when data “fluctuates”?
The values go up and down rather than following one trend.
The values go up and down rather than following one trend.
Compare your answer with the correct one above
What does it mean to “interpolate” data?
What does it mean to “interpolate” data?
Estimate a value between known data points.
Estimate a value between known data points.
Compare your answer with the correct one above
What does it mean to “extrapolate” data?
What does it mean to “extrapolate” data?
Predict values beyond the range of known data using the trend.
Predict values beyond the range of known data using the trend.
Compare your answer with the correct one above
What does the “trend” of a graph describe?
What does the “trend” of a graph describe?
The general direction of the data (upward, downward, or constant)
The general direction of the data (upward, downward, or constant)
Compare your answer with the correct one above
What is an outlier?
What is an outlier?
A data point that doesn’t fit the overall pattern of the data.
A data point that doesn’t fit the overall pattern of the data.
Compare your answer with the correct one above
What does “rate of change” mean?
What does “rate of change” mean?
How quickly one variable changes compared to another.
How quickly one variable changes compared to another.
Compare your answer with the correct one above
If the slope of a graph is zero what does that indicate?
If the slope of a graph is zero what does that indicate?
The data shows no change; the variable stays constant.
The data shows no change; the variable stays constant.
Compare your answer with the correct one above
What does a negative slope indicate?
What does a negative slope indicate?
As one variable increases the other decreases.
As one variable increases the other decreases.
Compare your answer with the correct one above
What does a positive slope indicate?
What does a positive slope indicate?
Both variables increase together.
Both variables increase together.
Compare your answer with the correct one above
What does “linear relationship” mean?
What does “linear relationship” mean?
The relationship between variables forms a straight line when graphed.
The relationship between variables forms a straight line when graphed.
Compare your answer with the correct one above