单项选择题
A cumulative frequency polygon is also called （）.
A.an ogive
B.a histogram
C.a frequency polygon
D.a stem and leaf plot
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相关考题
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单项选择题
If the individual class frequency is divided by the total frequency, the result is the （）.
A.midpoint frequency
B.cumulative frequency
C.stem and leaf plot
D.relative frequency -
单项选择题
If data are grouped into intervals and the number of items in each group is listed, this could be called a （）
A.ogive
B.histogram
C.frequency distribution
D.stem and leaf plot -
单项选择题
Which of the following is not the goal of descriptive statistics?（）
A.Summarising data
B.Displaying aspects of the collected data
C.Reporting numerical findings
D.Estimating characteristics of the population
