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Math 8: Scatterplot Review Flashcards | StudBud
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Math 8: Scatterplot Review
Math 8: Scatterplot Review
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A #math quiz to review #8thgrade #scatterplots
Flashcards
20 cards
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Practice quiz
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Questions
20
Answers
1
How are these two variables correlated? --> Hours spent watching TV & test grades
Negative
None
Positive
Proportional
2
Which scatter plot shows the LINE OF BEST FIT?
D
B
C
A
3
Which scatter plot shows the LINE OF BEST FIT?
D
C
A
B
4
What type of association is between the amount of fog in the sky&the distance a pilot can see?
Positive
Negative
Not enough information to tell
No Association
5
Which equation best matches the trend line for the scatter plot shown?
y= (- 1/3)x - 40
y= (1/3)x +40
y= (5/3) x - 40
y= (- 5/3)x + 40
6
Scatter plots can be used to view the relationship between 2 variables or bivariate.
TRUE
FALSE
7
Which of the scatter plots below shows a stronger association and why
Scatter plot B; doesn't have data points that are outliers
Scatter plot A; its slope is greater than B
Scatter plot A; points of data are closer together than B
Scatter plot B; its slope is positive
8
How are these two variables correlated? --> Education & Income
None
Positive
Undefined
Negative
9
Which is a true statement about two numerical sets of data with a negative association?
As one variable increases, the other doesn't change.
As one variable increases, the other increases.
As one variable increases, the other decreases.
As one variable decreases, the other decreases.
10
Use the graph to predict the weight of a suitcase for someone taking a 12-day trip
15
75
55
1000
11
Which equation matches the trendline shown?
y= 5x + 15
y= - 15x + 5
y= - 5x + 15
y= 15x + 5
12
How are these two variables correlated? --> Shoe size & height
Positive
None
Undefined
Negative
13
Which of the following is NOT true about the scatter plot shown?
The association is linear.
The association is positive.
For each additional day, the suitcase weighs 5 lbs more.
For every 5 days, the suitcase weight increases 1 lb.
14
Which line of best fit has the equation y = - 4x + 4?
C
D
A
B
15
Which scatter plot shows both the strongest positive & linear association?
D
A
C
B
16
How are these two variables correlated? --> Number of pets you have & your age
None
Negative
Positive
Proportional
17
Which line of best fit has the equation Y = - 10x + 100?
A
B
D
C
18
The line that goes through a scatter plot is called:
Line of symmetry
Slope intercept form
Line of best fit
Linear equation
19
Which variables would the scatter plot shown most likely represent?
Number of people at a concert and total concession sales
Number of siblings a person has and person's GPA
Number of hotel guests and total water consumption
Total number of miles driven and total gallons of gas used
20
Which scatter plot shows the LINE OF BEST FIT?
A
D
B
C
