A、seasonal variation
B、random variation
C、trend
D、correlation
A、seasonal variation
B、random variation
C、trend
D、correlation
A、cross-sectional data
B、observational data
C、time series data
D、panel data
The best title for this passage could be _________.
A.Turner makes a series of new decisions
B.Turner shows his anger at AOL Time Warner
C.Turner comes down from his peak in business
D.Turner slashes his financial stake in AOL Time Warner
A、Time series data with serial correlation
B、i.i.d cross-sectional data
C、None of the above
D、All of the above
The word"morass"(Line 5,Para 2) probably means_____.
A.a difficult situation
B.a time of crisis
C.a series of alternatives
D.a series of official rules
The word" morass" (in Para 2 Line 4) probably means______.
A.a difficult situation
B.a time of crisis
C.a series of alternatives
D.a series of official rules
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