The mean of this data set is __________. (Please round to two decimal points.)
The median of this data set is
The mode of this data set is __________. (Please round to two decimal points.)
In general, the mode always lies in between the mean and the median.
If there are ___ 20 observations, then the standard deviation of this data set is ___ . (Please round to two decimal points.)
If there are ____ 20 observations in total or in the population, then the standard deviation of this data set (a 更多
