A.midpoint frequency
B.cumulative frequency
C.stem and leaf plot
D.relative frequency
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A.ogive
B.histogram
C.frequency distribution
D.stem and leaf plot
A.Summarising data
B.Displaying aspects of the collected data
C.Reporting numerical findings
D.Estimating characteristics of the population
A.descriptive statistics
B.inferential statistics
C.nonparametric statistics
D.wishful thinking
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
A.organising data.
B.summarising data
C.presenting data in a convenient and informative way
D.doing all of the above
A.population
B.sample
C.parameter
D.statistic
A.a parameter
B.a statistic
C.a population
D.Both A and C are correct,since they are the same
A.population
B.sample
C.parameter
D.statistic
A.3 million registered voters in the state.
B.5000 registered voters interviewed.
C.53.6%of,or 2680,voters interviewed who plan to vote for him
D.46.4%of,or 2320,voters interviewed who plan not to vote for him
A.statistic
B.sample
C.population
D.parameter
最新试题
Simon Arnett, Director of Human Resources, is exploring the causes of employee absenteeism at Buderim Bottling during the last operating year (1 January 2005 to 31 December 2005). The average number of absences per employee, calculated from the personnel data of all employees, is a ().
Descriptive statistics deals with methods of()
对某班级学生的生活状况进行统计调查,下列标志中属于不变标志的是()
A summary measure that is computed from a sample to describe a characteristic of the population is called()
The number of class intervals in a frequency distribution is usually between ().
The number of phone calls arriving at a switchboard each hour has been recorded and the following frequency distribution has been developed.What is the cumulative frequency of the third class?()
最能反映离散程度的指标是()
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 politician who is running for the office of premier in a state with 3 million registered voters commissions a survey. In the survey, 53.6% of the 5000 registered voters interviewed say they plan to vote for him. The population of interest is the()
以2000年a0为最初水平,2016年an为最末水平,计算钢产量的年平均发展速度时,须开()