第四章测试1.Which of the following statistical charts applies to a continuous variable （ ）
A:Scatter graph B:Bar graph C:Line graph’ D:Histogram
答案:D
2.Pie charts can be used to describe （ ）
A:the frequency distribution of phenomena B:the changing trend of phenomena C:the internal structure of phenomena D:the development speed of phenomena 3.Which of the following statistical table is not made correctly （ ）
A:The numbers in the table are aligned to the decimal places B:The title of the statistical table is placed at the top of the table C:Statistical tables generally use headers to indicate the meaning and units of the data D:The more information in a table, the better 4.To compare the incidence rate of three diseases in a certain area in a certain year, we can draw （ ）
A:line chart B:circular chart C:histogram D:straight bar chart 5.To represent the component ratio of various causes of death in a certain place in a certain year, we can draw （ ）
A:line chart B:straight bar chart C:circular chart D:histogram
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