regression,correlation, exponential

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•
Mathematics
•
9th - 12th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the correlation coefficient?
Back
A statistical measure that describes the strength and direction of a relationship between two variables, ranging from -1 to 1.
2.
FLASHCARD QUESTION
Front
What does a correlation coefficient of -0.19 indicate?
Back
It indicates a weak negative correlation between the two variables.
3.
FLASHCARD QUESTION
Front
What is a scatter plot?
Back
A graphical representation of two variables, showing the relationship between them using points on a Cartesian plane.
4.
FLASHCARD QUESTION
Front
What does an r value of 0.934 suggest about the relationship between two variables?
Back
It suggests a strong positive correlation between the two variables.
5.
FLASHCARD QUESTION
Front
What is the difference between linear and exponential functions?
Back
Linear functions have a constant rate of change, while exponential functions have a variable rate of change that increases or decreases multiplicatively.
6.
FLASHCARD QUESTION
Front
What is the equation of a line of best fit?
Back
It is a linear equation that best represents the data points in a scatter plot, minimizing the distance between the points and the line.
7.
FLASHCARD QUESTION
Front
What does exponential growth mean?
Back
It refers to a situation where a quantity increases at a rate proportional to its current value, leading to rapid growth over time.
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