What are the three conditions that must be satisfied before using the linear correlation model?
Calculating Correlation Coefficient Using a Graphing Calculator

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Mathematics
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9th - 10th Grade
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Hard
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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Two qualitative variables, a linear scatterplot, and outliers
Two quantitative variables, a linear scatterplot, and no outliers
Two qualitative variables, a non-linear scatterplot, and outliers
Two quantitative variables, a non-linear scatterplot, and outliers
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does a correlation coefficient closer to 1 indicate?
A strong negative correlation
No correlation
A strong positive correlation
A weak negative correlation
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of minimizing the squares of residuals?
To find the line that has the most outliers
To find the line that is closest to zero
To find the line that minimizes the distance from the points
To find the line that maximizes the distance from the points
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which menu option on a graphing calculator is used to calculate the correlation coefficient?
Graph
Statistics
Geometry
Algebra
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the correlation coefficient rounded to the nearest hundredth in the example provided?
0.90
0.87
0.88
0.89
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the form of the equation for the line of best fit in linear regression?
y equals a plus bx
y equals mx plus b
y equals ax squared plus bx plus c
y equals b plus ax
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the slope of the line of best fit represent in the context of the Monopoly example?
The number of spaces from Go
The total cost of the property
The decrease in cost per space
The increase in cost per space
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