單項選擇題

A student achieves an 82 on the first test in a statistics course. From this, she assumes that her average at the end of the semester (after other tests) will be about 82. This is an example of （）.

A.descriptive statistics
B.inferential statistics
C.nonparametric statistics
D.wishful thinking

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單項選擇題
Which of the following statements is not true？（）
A.One form of descriptive statistics uses graphical techniques
B.One form of descriptive statistics uses numerical techniques
C.In the language of statistics，the term population refers to a group of people
D.Statistical inference is used to draw conclusions or inferences about characteristics of populations based on sample data
單項選擇題
Descriptive statistics deals with methods of（）
A.organising data.
B.summarising data
C.presenting data in a convenient and informative way
D.doing all of the above

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