
Understanding Correlation Coefficients

Interactive Video
•
Mathematics
•
9th - 10th Grade
•
Hard

Patricia Brown
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary purpose of drawing a line of best fit on a scatter plot?
To represent the average trend of the data
To make the graph look more appealing
To connect all the data points
To highlight the outliers
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following indicates a poor line of best fit?
The line is parallel to the x-axis
The line passes through the center of the data points
The line moves in the opposite direction of the data trend
The line has a positive slope
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does a residual represent in the context of a line of best fit?
The distance between a data point and the line
The slope of the line
The average value of the data set
The total number of data points
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If a data point is below the line of best fit, what is the sign of its residual?
Negative
Positive
Zero
Undefined
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does a correlation coefficient of 1 indicate?
No correlation
A perfect negative correlation
A weak positive correlation
A perfect positive correlation
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How is a correlation coefficient of 0.9 interpreted?
A weak positive correlation
A strong positive correlation
No correlation
A strong negative correlation
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does a correlation coefficient of 0 signify?
A weak negative correlation
No correlation
A perfect negative correlation
A perfect positive correlation
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