问答题

现给出某商店50名职工的某月奖金资料(见下表)。试编制组距式变量数列(次数分别用频数和频率表示)。
单位:元
72.5
82.8
74.0
74.5
106.2
94.3
91.0
93.0
65.7
84.0
86.3
98.2
94.5
87.4
79.0
83.4
86.8
92.2
90.0
101.3
111.5
74.8
83.2
86.4
95.2
96.3
98.0
98.0
104.5
76.2
86.5
91.3
84.8
72.0
85.4
93.2
91.0
92.3
89.6
86.5
84.0
92.5
91.5
85.5
98.6
93.4
112.1
104.4
96.0
88.5

答案: 参见下表
单位:元
72.5
82.8
74.0
74.5
106.2
94.3
91.0
93.0
65.7
84.0
86.3
98.2
94.5
87.4
79.0
83.4
86.8
92.2
90.0
101.3
111.5
74.8
83.2
86.4
95.2
96.3
98.0
98.0
104.5
76.2
86.5
91.3
84.8
72.0
85.4
93.2
91.0
92.3
89.6
86.5
84.0
92.5
91.5
85.5
98.6
93.4
112.1
104.4
96.0
88.5
答案:



估计范围:
上限为3.56+0.22=3.78(次),下限为3...
微信扫码免费搜题