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U1 -- WK2 -- 8.SP.2
  • 1. Most of the data in real life situations is ordered and fits a line with hundred percent accuracy.
A) TRUE
B) FALSE
  • 2. If the data points are "scattered", then we try to find a line that best fits the data.
A) FALSE
B) TRUE
  • 3.
A) d
B) b
C) c
D) a
  • 4. A scatter plot is a plot of all the ordered pairs in a table.
A) TRUE
B) FALSE
  • 5.
A) D
B) A
C) C
D) B
  • 6. Strong positive and negative correlations have data points _____ to the line of best fit.
A) from right to left
B) very close
C) far away
D) fairly close
  • 7. Which is true about this graph?
A) Line 2 is the better line of best fit because it passes directly through 2 of the points on the graph.
B) Line 1 is the better line of best fit because there are about as many points above and below the line.
C) There is no correlation present in this scatterplot.
D) Neither line is appropriate, because there is a negative correlation present in the scatterplot.
  • 8. Which is true about this graph?
A) There is no correlation present in this scatterplot.
B) A line with a positive slope should be used to model the scatterplot data.
C) A line with a negative slope should be used to model the scatterplot data.
  • 9. The correlation in this scatterplot is best described as _________________.
A) moderate positive correlation
B) strong positive correlation
C) weak positive correlation
D) moderate negative correlation
  • 10. The correlation in this scatterplot is best described as ______________.
A) strong positive correlation
B) weak positive correlation
C) strong negative correlation
D) weak negative correlation
  • 11. The line of best fit in this image is not a good line of best fit because:
A) there is no correlation in this scatterplot
B) it is not drawn through the middle of the points
C) it should be going down from left to right
  • 12. The correlation in this scatterplot is best described as ______________.
A) weak negative correlation
B) strong negative correlation
C) no correlation
D) moderate negative correlation
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F2 -- wk2 -- 8.sp.2
F2 -- wk1 -- 8.sp.1
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