Scatterplots and Line of Best Fit

Quiz
•
Mathematics
•
9th Grade
•
Hard
Standards-aligned
Monica King
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
What is an explanatory variable in a dataset?
The variable that is being predicted or explained.
The variable that explains or influences changes in another variable.
The variable that remains constant.
The variable that is always numerical.
2.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
What is a response variable in a dataset?
The variable that explains or influences changes in another variable.
The variable that is being predicted or explained.
The variable that remains constant.
The variable that is always categorical.
3.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Which of the following best describes a scatterplot?
A graph that shows the frequency of data points.
A graph that displays the relationship between two variables using dots.
A graph that shows the distribution of a single variable.
A graph that uses bars to represent data.
4.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
In a scatterplot, what does each point represent?
A single variable's value.
A pair of values, one from each of the two variables.
The average of all data points.
The sum of all data points.
5.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
What does the slope of a line of best fit indicate in a scatterplot?
The point where the line crosses the y-axis.
The rate of change between the explanatory and response variables.
The maximum value of the response variable.
The minimum value of the explanatory variable.
Tags
CCSS.8.EE.B.5
6.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
What does the y-intercept of a line of best fit represent?
The value of the response variable when the explanatory variable is zero.
The average value of the explanatory variable.
The maximum value of the response variable.
The point where the line crosses the x-axis.
Tags
CCSS.HSF.LE.B.5
7.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
If the slope of a line of best fit is positive, what does this indicate about the relationship between the two variables?
There is no relationship between the variables.
As the explanatory variable increases, the response variable decreases.
As the explanatory variable increases, the response variable increases.
The variables are inversely proportional.
Tags
CCSS.8.EE.B.5
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