In a perfectly symmetrical bell-shaped "normal" distribution
A、the arithmetic mean equals the median.
B、the median equals the mode.
C、the arithmetic mean equals the mode.
D、All of the above.
A、the arithmetic mean equals the median.
B、the median equals the mode.
C、the arithmetic mean equals the mode.
D、All of the above.
This is the first draft of the book. Please feel perfectly free to ____ on it.
A.cope
B.complain
C.comment
D.VVV
A、perfectly competitive and oligopolistic markets
B、perfectly competitive markets but not oligopolistic markets
C、oligoplistic but not perfectly competitive markets
D、neither oligopolistic nor perfectly competitive markets.
The sergeant's orders were perfectly ______.
A.executed
B.exercised
C.developed
D.applied
(Either) of these young ladies (are) perfectly (qualified) (to teach) Greek and Latin.
A.Either
B.are
C.qualified
D.to teach
.
A) were B) are C) is D) have been
A、elastic.
B、inelastic.
C、unitary elastic.
D、perfectly inelastic.
A.If X and Y are perfectly negatively correlated, the risk of the portfolio is neither reduced nor increased.
B.If X and Y are perfectly negatively correlated, the risk of the portfolio is perfectly offset.
C.If X and Y are perfectly positively correlated, the risk of the portfolio is neither reduced nor increased.
D.If X and Y are totally independent with each other, the risk of the portfolio is reduced.
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