A the correlation is close to 0,then we expect to see
A) An upward sloping cluster of points on the scatterplot
B) A downward sloping cluster of points
C) A cluster of points around a trendline
D) A cluster of points with no apparent relationship
E) We cannot say what the scatterplot should look like based on the correlation
Correct Answer:
Verified
Q2: We study relationships among numerical variables using
A)Correlation
B)Covariance
C)Scatterplots
D)All
Q4: Generally speaking,if two variables are unrelated (as
Q5: Example of comparison problems include
A)Salary broken down
Q6: The most common data format is
A)Long
B)Short
C)Stacked
D)Unstacked
Q7: Scatterplots are also referred to as
A)Crosstabs
B)Contingency charts
C)X-Y
Q8: The tool that provides useful information about
Q9: If Cov(X,Y)= - 16.0,variance of X =
Q10: A useful way of comparing the distribution
Q11: To examine relationships between two categorical variables,we
Q22: We are usually on the lookout for
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