Algebra 1 Practice Checkpoint 1
Flashcard
•
Mathematics
•
9th Grade
•
Practice Problem
•
Hard
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1.
FLASHCARD QUESTION
Front
What is the difference between correlation and causation?
Back
Correlation indicates a relationship between two variables, but it does not imply that one variable causes the other.
2.
FLASHCARD QUESTION
Front
Back
The solutions are x = -2 and x = 7.
3.
FLASHCARD QUESTION
Front
What units are appropriate for measuring small objects like a pencil's eraser?
Back
Millimeters are the most appropriate units for measuring the diameter of a pencil's eraser.
4.
FLASHCARD QUESTION
Front
Back
r(6) = 108.
5.
FLASHCARD QUESTION
Front
If a principal estimates 340 participants but 390 actually participate, how much did they underestimate?
Back
The principal underestimated participation by approximately 12.82%.
6.
FLASHCARD QUESTION
Front
Define correlation in statistics.
Back
Correlation is a statistical measure that describes the extent to which two variables change together.
7.
FLASHCARD QUESTION
Front
What does it mean if two variables are positively correlated?
Back
If two variables are positively correlated, as one variable increases, the other variable also tends to increase.
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