Correlation
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Question 1 of 6
1. Question
Which of the following scatter plots have negative correlations?
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Fantastic!
Incorrect
Correlation is a value between `-1` and `1` which describes how the values in the data relate to each other.
You can determine if a correlation is negative or positive depending on the direction made on a scatter plot.`\text(Upward Slope)` `=` `\text(Positive Correlation)` 
`\text(Downward Slope)` `=` `\text(Negative Correlation)` 
`\text(No Direction)` `=` `\text(Zero Correlation)` Using the guide above, we can determine which of the scatter plots are negativePlot A
The scatter plot does not display any visible direction. Therefore, the correlation is zero.Plot B
The scatter plot displays a downward slope. Therefore, the correlation is negativePlot C
The scatter plot displays an upward slope. Therefore, the correlation is positivePlot D
The scatter plot displays a downward slope. Therefore, the correlation is negativeTherefore, plots `B` and `D` have negative correlations. -
Question 2 of 6
2. Question
Which of the following scatter plots has the most accurate correlation?
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Well Done!
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Correlation is a value between `-1` and `1` which describes how the values in the data relate to each other.
The accuracy of a correlation is determined on how less scattered that plots are.Using the guide above, we can determine which of the scatter plots is the most accuratePlot A
The scatter plot displays an upward slope but the plots are loose. Therefore, the accuracy of the correlation is accurate.Plot B
The scatter plot does not display any visible direction. Therefore, the correlation has no line of best fit.Plot C
The scatter plot displays an upward slope and the plots form a single straight line. Therefore, the accuracy of the correlation is very accurate.Plot D
The scatter plot displays an downward slope but the plots are very loose. Therefore, the accuracy of the correlation is not very accurate.Therefore, plot `C` is the most accurate correlation. -
Question 3 of 6
3. Question
Which of the following scatter plots indicate the correlation between Study Time and Grades?
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Keep Going!
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Correlation is a value between `-1` and `1` which describes how the values in the data relate to each other.
You can determine if a correlation is negative or positive depending on the direction made on a scatter plot.`\text(Upward Slope)` `=` `\text(Positive Correlation)` `\text(Downward Slope)` `=` `\text(Negative Correlation)` `\text(No Direction)` `=` `\text(Zero Correlation)` The proper logic to follow would be, as your study time increases, your grade also increases.This means that Study Time and Grades have a direct variation, or a positive correlation.Using the guide above, we can determine which of the scatter plots is positivePlot A
The scatter plot displays an upward slope on the first half, and a downward slope on the second half. Therefore, the correlation is positive on the first half, and negative on the second half.Plot B
The scatter plot displays a downward slope. Therefore, the correlation is negativePlot C
The scatter plot does not display any visible direction. Therefore, the correlation is zero.Plot D
The scatter plot displays an upward slope. Therefore, the correlation is positiveTherefore, plot `D` displays the correlation between Study Time and Grades. -
Question 4 of 6
4. Question
Which of the following scatter plots indicate the correlation `r=-0.8`?
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Great Work!
Incorrect
Correlation is a value between `-1` and `1` which describes how the values in the data relate to each other.
You can determine if a correlation is negative or positive depending on the direction made on a scatter plot.`\text(Upward Slope)` `=` `\text(Positive Correlation)` `\text(Downward Slope)` `=` `\text(Negative Correlation)` `\text(No Direction)` `=` `\text(Zero Correlation)` Since the correlation is negative and is close to `-1`, the correct scatter plot would have a downward slope and the plots should be the least scattered.Plot A
The scatter plot displays a downward slope and the plots are loose. Therefore, the correlation of this plot would be negative and is close to `0`.Plot B
The scatter plot displays an upward slope and the plots are loose. Therefore, the correlation of this plot would be positive and is close to `0`.Plot C
The scatter plot displays a downward slope and the plots are compressed. Therefore, the correlation of this plot would be negative and is close to `-1`.Plot D
The scatter plot displays an upward slope and the plots are compressed. Therefore, the correlation of this plot would be positive and is close to `1`.Therefore, plot `C` would be the most accurate scatter plot to indicate the correlation `r=-0.8`. -
Question 5 of 6
5. Question
Match the correlation coefficient to each of the scatter plots.`r=0.8``r=0.3``r=0``r=-0.9`
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`\text(Plot A) =` (0.8)`\text(Plot B) =` (0.3)`\text(Plot C) =` (0)`\text(Plot D) =` (-0.9)
Hint
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Correct!
Incorrect
Correlation is a value between `-1` and `1` which describes how the values in the data relate to each other.
You can determine if a correlation is negative or positive depending on the direction made on a scatter plot.`\text(Upward Slope)` `=` `\text(Positive Correlation)` `\text(Downward Slope)` `=` `\text(Negative Correlation)` `\text(No Direction)` `=` `\text(Zero Correlation)` Using the guide above, we can determine which of the scatter plots are negativePlot A
The scatter plot displays a lesser scattered upward slope. Therefore, the correlation would be closer to `1`.`r=0.8` fits this scatter plot.Plot B
The scatter plot displays a more scattered upward slope. Therefore, the correlation would be positive but closer to `0`.`r=0.3` fits this scatter plot.Plot C
The scatter plot does not display any visible direction. Therefore, the correlation `(r)` is zero.Plot D
The scatter plot displays a lesser scattered upward slope. Therefore, the correlation would be closer to `-1`.`r=-0.9` fits this scatter plot.`\text(Plot A)=0.8``\text(Plot B)=0.3``\text(Plot C)=0``\text(Plot D)=-0.9` -
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Question 6 of 6
6. Question
Match the correlation coefficient to each of the scatter plots.`r=0.25``r=-0.7``r=-0.9``r=0.5`
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`\text(Plot A) =` (0.25)`\text(Plot B) =` (-0.9)`\text(Plot C) =` (-0.7)`\text(Plot D) =` (0.5)
Hint
Help VideoCorrect
Exceptional!
Incorrect
Correlation is a value between `-1` and `1` which describes how the values in the data relate to each other.
You can determine if a correlation is negative or positive depending on the direction made on a scatter plot.`\text(Upward Slope)` `=` `\text(Positive Correlation)` `\text(Downward Slope)` `=` `\text(Negative Correlation)` `\text(No Direction)` `=` `\text(Zero Correlation)` Using the guide above, we can determine the values each scatter plots representPlot A
The scatter plot displays a very loose upward slope. Therefore, the correlation would be positive and closer to `0`.`r=0.25` fits this scatter plot.Plot B
The scatter plot displays a less scattered downward slope. Therefore, the correlation would be negative and closer to `-1`.`r=-0.9` fits this scatter plot.Plot C
The scatter plot displays a loose downward slope. Therefore, the correlation would be negative and closer to `-1`.`r=-0.7` fits this scatter plot.Plot D
The scatter plot displays a lesser scattered upward slope. Therefore, the correlation would be closer to `1`.`r=0.5` fits this scatter plot.`\text(Plot A)=0.25``\text(Plot B)=-0.9``\text(Plot C)=-0.7``\text(Plot D)=0.5` -