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
Which of the following statements is true about descriptive statistics
A．It combines quantitative variables and qualitative variables.
B．It can be used to deal with only quantitative variables.
C．It helps to summarize properties of a group of data.
D．It helps to make predictions using a sample of observations.
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