一、填空题1.为了调查某市市民使用手机的情况,一般用(填“普查”或“抽样调查”);2.在单词plane,train,subway,ship,bus,car中,出现频数最多的字母是;3.数据32,28,18,29,65,31,26,46,21,19的极差是;4.如果一组数据的方差是16,那么这组数据的标准差是;5.数据4,6,7,5,8的方差是; 1. Fill in the blanks 1. In order to investigate the use of mobile phones by citizens of a certain city, it is generally used (fill in “census” or “sampling survey”); 2. In the words plane, train, subway, ship, bus, and car, the frequency of occurrence is highest. The letters are; 3. The data 32,28,18,29,65,31,26,46,21,19 the range is; 4. If the variance of a set of data is 16, then the standard deviation of this set of data is ;5. The variance of data 4,6,7,5,8 is;