Interpretation of Data - ACT Science
Card 1 of 70
What is a positive correlation?
What is a positive correlation?
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When one variable increases, the other increases, too
When one variable increases, the other increases, too
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What is a negative correlation?
What is a negative correlation?
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When one variable increases, the other decreases
When one variable increases, the other decreases
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What does “direct relationship” mean?
What does “direct relationship” mean?
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Both variables move in the same direction at a consistent rate.
Both variables move in the same direction at a consistent rate.
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What does “inverse relationship” mean?
What does “inverse relationship” mean?
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As one variable increases, the other decreases
As one variable increases, the other decreases
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What is a dependent variable?
What is a dependent variable?
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The variable that is measured or observed in an experiment.
The variable that is measured or observed in an experiment.
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What is an independent variable?
What is an independent variable?
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The variable that is changed or controlled by the experimenter.
The variable that is changed or controlled by the experimenter.
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On a graph what does the x-axis usually represent?
On a graph what does the x-axis usually represent?
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The independent variable.
The independent variable.
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On a graph what does the y-axis usually represent?
On a graph what does the y-axis usually represent?
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The dependent variable.
The dependent variable.
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What does a steep slope on a graph indicate?
What does a steep slope on a graph indicate?
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A rapid or strong rate of change.
A rapid or strong rate of change.
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What does a flat horizontal line on a graph show?
What does a flat horizontal line on a graph show?
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No change — the value is constant.
No change — the value is constant.
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What does it mean when data “fluctuates”?
What does it mean when data “fluctuates”?
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The values go up and down rather than following one trend.
The values go up and down rather than following one trend.
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What does it mean to “interpolate” data?
What does it mean to “interpolate” data?
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Estimate a value between known data points.
Estimate a value between known data points.
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What does it mean to “extrapolate” data?
What does it mean to “extrapolate” data?
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Predict values beyond the range of known data using the trend.
Predict values beyond the range of known data using the trend.
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What does the “trend” of a graph describe?
What does the “trend” of a graph describe?
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The general direction of the data (upward, downward, or constant)
The general direction of the data (upward, downward, or constant)
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What is an outlier?
What is an outlier?
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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.
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What does “rate of change” mean?
What does “rate of change” mean?
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How quickly one variable changes compared to another.
How quickly one variable changes compared to another.
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If the slope of a graph is zero what does that indicate?
If the slope of a graph is zero what does that indicate?
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The data shows no change; the variable stays constant.
The data shows no change; the variable stays constant.
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What does a negative slope indicate?
What does a negative slope indicate?
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As one variable increases the other decreases.
As one variable increases the other decreases.
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What does a positive slope indicate?
What does a positive slope indicate?
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Both variables increase together.
Both variables increase together.
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What does “linear relationship” mean?
What does “linear relationship” mean?
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The relationship between variables forms a straight line when graphed.
The relationship between variables forms a straight line when graphed.
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