单项选择题
A.midpoint frequency B.cumulative frequency C.stem and leaf plot D.relative frequency
If data are grouped into intervals and the number of it...
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
Which of the following is not the goal of descriptive s...
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
A student achieves an 82 on the first test in a statist...
单项选择题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
