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Scatter Plots and Line of Best Fit Flashcards | StudBud
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Scatter Plots and Line of Best Fit
Scatter Plots and Line of Best Fit
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1
What is purpose of a scatter plot?
To better observe the correlation between the variables
All of the above
To verify the linear relationship between the variables
To prove the causal relationship between the variables
2
Which of the following is untrue about scatter plots?
If two variables are correlated, it is a linear relationship
Linear things can take the form of positive or negative
Negative associations are lines with negative slopes
3
Why is it important to label the axes for a scatter plot?
To satisfy your math teacher
It isn't important
To make the scatter plot easier to construct
To prevent misinterpretation of the data
4
What is meant by data that "clusters"
Data that follows no real pattern
Data that all lands in one particular part of graph
Data that follows a linear relationship
Data that is widely spread out
5
Which of the following is probably least likely to have a linear relationship?
Grade and reading level
Shoe size and age
Age and zip code
Weight and cholesterol level
6
What does an outlier indicate?
he correlation between the variables cannot be determined
There is no significant correlation between the variables
None of the above
There is a significant correlation between the variables
7
How could data in a scatter plot possibly be wrong?
The data may have been incorrectly collected
All of the above
It could be incorrectly graphed
The axes might be incorrect
8
Which would be an example of a positive association?
more hours spent reading the higher the SAT scores
The more hours spent online, the fewer hours of sleep gotten
The higher gas prices get, the fewer miles people drive
The lower temperatures get, the more Calories people intake
9
Which type of scatter plot would suggest a positive association?
When one variable increases, the other decreases
Both variables have a clear and definite correlation
When one variable decreases, the other increases
When one variable increases, the other increases
10
Which would be an example of a negative association?
The more texts Jeremy sends, the higher his phone bill
The more hours Amy spends practicing, the higher her GPA
None of these
The more hours Tina spends exercising, the lower her weight
