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Mathematics
6th -
8thgrade
Scatter Plots (Type of Correlation & Line of Best Fit)
30 questions
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- 1. Multiple Choice
What is the type of association?
Negative
no association
positive
- 2. Multiple ChoiceWhat type of association does this graph have?positivenegativenoneall of the above
- 3. Multiple ChoiceWhat type of association does this graph have?positivenegativenoneall of the above
- 4. Multiple ChoiceWhat type of correlation is the scatter plot?Positive CorrelationNegative CorrelationNo CorrelationUndefined Correlation
- 5. Multiple ChoiceWhat type of association is the scatter plot?Positive AssociationNegative AssociationNo AssociationUndefined Association
- 6. Multiple ChoiceWhat type of association is the scatter plot?Positive AssociationNegative AssociationNo AssociationUndefined Association
- 7. Multiple ChoiceWhat type of association is the scatter plot?Positive AssociationNegative AssociationNo AssociationUndefined Association
- 8. Multiple ChoiceWhat type of correlation is the scatter plot?Positive CorrelationNegative CorrelationNo CorrelationUndefined Correlation
- 9. Multiple ChoiceWhat would the correlation be between math grades and the time it takes to run a mile ?Postive CorrelationNegative CorrelationNo CorrelationCannot Be Determined
- 10. Multiple ChoiceWhat type of correlation (association)?
The outside temperature and the amount of layers you wear.Positive correlationNegative correlationNo correlation - 11. Multiple ChoiceThe number of siblings you have and your weight.Positive correlationNegative correlationNo correlation
- 12. Multiple ChoiceThe scatter plot below shows the number of books read by students in Mrs. Hall’s English class and their final grades. Which statement represents the best description about the line of best fit?The more books students read, the lower their English grade.The more books students read, the higher their English grade.The fewer books students read, the higher their English grade.No relationship exists between the number of books students read and their English grades.
- 13. Multiple Choice
JoBeth draws a scatter plot that shows as the outside temperature increases, sales at her lemonade stand increase. Which best describes the scatter plot?
The points show that as x-values increase, y-values increase.
The points show that as x-values increase, y-values decrease.
The points show that as x-values decrease, y-values stay the same.
The points show that as x-values decrease, y-values increase.
- 14. Multiple Choice
Which statement best describes the relationship between time shopping online and the number of stores visited?
As the number of hours increases, the number of stores decreases.
As the number of hours increases, the number of stores increases.
The number of hours and the number of stores are about the same.
As the number of hours decreases, the number of stores increases.
- 15. Multiple Choice
Molly collected data about the number of hours students studied and their scores on a test. The results are shown in the scatter plot. Which statement about the data is true?
As study hours increase, test scores decrease.
As study hours increase, test scores increase.
As study hours increase, test scores stay the same.
As study hours decrease, test scores increase.
- 16. Multiple Choice
Which relationship could be represented by this scatter plot?
As the number of muffins in a box increases, the price increases.
As the speed of a car increases, the distance the car travels increases.
As the population of a city increases, the number of schools in the
city increases.
As the number of daylight hours increases, the number of night hours decreases.
- 17. Multiple Choice
Which scatter plot show a positive relationship?
Graph A
Graph B
Graph C
Graph D
- 18. Multiple Choice
Based on the scatterplot, which of the following conclusions about the relationship between her height and weight is true?
There is a negative relationship between height and weight
There is a positive relationship between height and weight
There is a constant relationship between height and weight
There is no relationship between height and weight
- 19. Multiple ChoiceThe number of siblings you have and your weight.Positive correlationNegative correlationNo correlationAll of the above
- 20. Multiple ChoiceAs x increases, y increasescorrelation coefficientcausationpositive correlationnegative correlation
- 21. Multiple ChoiceWhat is a scatter plot?A graph that shows the relationship of two data sets.A graph drawn using rectangular bars to show how large each value is.A graph that shows information that is connected in some way.A graph that shows data changing over time.
- 22. Multiple ChoiceYou are analyzing a scatter plot that has a negative correlation. What is true of the of the x and y values?As x increases, y decreasesAs x increases, y increasesAs x decreases, y decreases
- 23. Multiple ChoiceThe scatter plot shows the relationship between the number of chapters and the total number of pages for several books. Use the trend line to predict how many chapters would be in a book with 180 pages.12 chapters15 chapters18 chapters21 chapters
- 24. Multiple ChoiceFind the slope for the trend line using points (2,2) and (4,3)21/2-2-1/2
- 25. Multiple ChoiceWhich of the following lines represents the line of best fit for the scatter plot?ABCD
- 26. Multiple Choice
If the line of best fit is given, y = 31.45x - 242.3, where x represents hours and y represents income...
Determine the predicted income if 22 hours were worked on an assembly job.
$207.30
$449.60
$691.90
$543.30
- 27. Multiple Choice
Caroline weighs her new puppy every month to see how much it has grown. If age is a and weight is W, which of these is the correct equation for the line of best fit?
W = 3.6 + 8.9
W = 3.6a + 8.9
a = 8.9W + 3.6
W = 8.9a + 3.6
- 28. Multiple ChoiceIn the equation y=3x-5, what is the value of the y-intercept?3-5-3/5-2
- 29. Multiple Choice
Click on Image. (Use the orange points to find your equation.)
y = 5/6 x + 1
y = x + 5/6
y = x + 1
y = 6/5 x + 1
- 30. Multiple Choice
What is the equation of the line of best fit? (Use the bold black points to find your equation.)
y = -25x + 170
y = -5/8x + 170
y = 25x + 170
y = 5/8x + 170
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