- 1. Which is this the most accurate line of best fit in the scatterplot below?
A) p
B) r
C) g
D) b
- 2. Which is this the most accurate line of best fit in the scatterplot below?
A) r
B) p
C) g
D) b
- 3. Which is true about this graph?
A) A good positive line of best fit exists.
B) No good line of best fit exists.
C) A good negative line of best fit exists.
- 4. Which is true about this graph?
A) A good negative line of best fit exists.
B) No good line of best fit exists.
C) A good positive line of best fit exists.
- 5. Which is true about this graph?
A) No good line of best fit exists.
B) A good positive line of best fit exists.
C) A good negative line of best fit exists.
- 6. Which is this the most accurate line of best fit in the scatterplot below?
A) b
B) p
C) r
D) g
- 7. Which is true about this graph?
A) A good negative line of best fit exists.
B) A good positive line of best fit exists.
C) No good line of best fit exists.
- 8. We use the line of __________________ to model the relationship between two variables when there is a linear association.
- 9. The following scatter plot represents which ordered pairs?
A) (1,4), (2,2), (3,6), & (4,2)
B) (4,1), (2,0), (3,6), & (4,2)
C) (4,1), (0,2), (6,3), & (2,4)
D) (1,4), (2,0), (3,6), & (4,2)
- 10. An outlier is a piece of data that is close to the line of best fit.
A) True
B) False
- 11. Which line is the more accurate line of best fit?
A) Line 2
B) Line 1
- 12. When all of the data points are very close to the line of best fit, we can say there is a strong correlation present.
A) False
B) True
- 13. What type of correlation is present if the data form a clear linear pattern, but the data points are not all very close to the line of best fit?
A) Moderate
B) Weak
C) Strong
- 14. What type of correlation is present if the data form a clear linear pattern, but many of the data points are a good distance away from the line of best fit?
A) Weak
B) Moderate
C) Strong
- 15. What type of correlation is present if the data form a clear linear pattern, and nearly all of the data points are very close to the line of best fit?
A) Weak
B) Strong
C) Moderate
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