单项选择题

What is the passage mainly concerned with

A．Development and application of statistics.
B．Origin of descriptive statistics.
C．Limitations of inferential statistics.
D．Importance of statistics.
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单项选择题
Describing and tabulating are associated with ______.
A．inferential statistics
B．descriptive statistics
C．theories of probability
D．inefficiency of counting
单项选择题
The author of the passage points out that ______.
A．keeping cash is the only way to avoid risks
B．the longer you own a stock, the more you lost
C．the high rate of profit and high rate of risk coexist in stocks
D．the best way to accumulate wealth is by investing in stocks
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