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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) TRUE
B) FALSE
  • 3.
A) b
B) a
C) c
D) d
  • 4. A scatter plot is a plot of all the ordered pairs in a table.
A) TRUE
B) FALSE
  • 5.
A) D
B) B
C) C
D) A
  • 6. Strong positive and negative correlations have data points _____ to the line of best fit.
A) very close
B) far away
C) from right to left
D) fairly close
Screen Shot at
  • 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) Neither line is appropriate, because there is a negative correlation present in the scatterplot.
D) There is no correlation present in this scatterplot.
Screen Shot at
  • 8. Which is true about this graph?
A) There is no correlation present in this scatterplot.
B) A line with a negative slope should be used to model the scatterplot data.
C) A line with a positive slope should be used to model the scatterplot data.
Screen Shot at
  • 9. The correlation in this scatterplot is best described as _________________.
A) moderate positive correlation
B) moderate negative correlation
C) weak positive correlation
D) strong positive correlation
  • 10. The correlation in this scatterplot is best described as ______________.
A) weak positive correlation
B) weak negative correlation
C) strong positive correlation
D) strong negative correlation
Screen Shot at
  • 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 should be going down from left to right
C) it is not drawn through the middle of the points
Screen Shot at
  • 12. The correlation in this scatterplot is best described as ______________.
A) weak negative correlation
B) moderate negative correlation
C) strong negative correlation
D) no correlation
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