Reference no: EM132641193

Which two attributes are the most strongly correlated? MPG and Engine_Size Vweight and MPG

• Vweight and Engine_Size
• Cylinders and Engine_Size

Which two attributes are the most weakly correlated?

• Engine_Size and Cylinders
• Acceleration and Vweight
• Acceleration and MPG
• Engine_Size and MPG

What is the relationship between Horse_Power and MPG?

• As MPG decreases, Horse_Power decreases.
• As MPG increases, Horse_Power increases.
• There is no meaningful relationship between Horse_Power and MPG.
• As Horse_Power increases, MPG decreases.

What is the nature of the statistical relationship between Horse_Power and Acceleration?

• Of all the attributes Acceleration is correlated to, its relationship with Horse_Power is the weakest.
• Acceleration is correlated to Horse_Power in a statistically meaningful way, but it is even more strongly correlated to MPG.
• There is no meaningful statistical relationship between these two variables.
• There is a relatively strong relationship between these two variables.

What is the weakest correlation coefficient in the data set?

• -0.830
• -0.413
• -0.802
• 0.408

What is the strongest correlation coefficient in the data set?

• -0.802
• -0.830
• 0.950
• 0.935

Considering only attributes that have relationships where their values go in opposite directions, what is the strongest correlation coefficient in the data set?

• -0.830
• 0.408
• -0.802
• 0.950

Are there any attributes in the data set that should be removed because they have no meaningful correlations to any other attributes?

• Yes. MPG has too many negative correlations to be a meaningful attribute.
• No. All attributes have multiple correlations that would be considered very strong.
• Yes. Engine_Size has too much variability for any correlations to be meaningful.
• No. All attributes have at least one statistically meaningful correlation.

Which of the following is an alternative operator to Correlation Matrix in RapidMiner?

• Mutual Information Matrix
• Spearman Correlation
• Clustering
• Scatterplot

Assuming you were going to add a new attribute to the data set, which of the following would you expect to have the strongest correlations to the existing attributes?

• Wind resistance rating
• Color ID
• Customer satisfaction rating
• Country of origin ID