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统计学计算器
数据分析工具，支持描述统计、回归分析、概率分布等统计计算
数据输入
描述统计
样本数量
50
均值
48.8474
中位数
47.8450
众数
31, 7.11, 15.85, 25.38, 27.64, 28.37, 31.49, 33.3, 34.43, 34.47, 36.58, 36.99, 38.15, 38.25, 39.22, 39.94, 40.52, 42.4, 42.56, 42.96, 43.29, 43.32, 45.33, 46.56, 47.76, 47.93, 50.09, 51.24, 51.54, 51.9, 53.07, 53.19, 53.2, 54.1, 54.96, 55.37, 56.74, 61.81, 62.25, 62.36, 64.83, 65.57, 67.19, 69.78, 70.64, 71.28, 74.68, 77.94, 81.91, 85.93
标准差
16.4512
方差
270.6417
极差
78.8200
四分位距
22.3675
百分位数
P25: 38.1750
P50: 47.8450
P75: 60.5425
P90: 70.7040
分布分析
0.0615
右偏分布
-0.1028
平峰分布
33.6787%
变异很大
频率分布
| 区间 | 频数 | 频率 | 累积频率 |
|---|---|---|---|
| [7.1100, 14.9920) | 1 | 2.00% | 2.00% |
| [14.9920, 22.8740) | 1 | 2.00% | 4.00% |
| [22.8740, 30.7560) | 3 | 6.00% | 10.00% |
| [30.7560, 38.6380) | 9 | 18.00% | 28.00% |
| [38.6380, 46.5200) | 9 | 18.00% | 46.00% |
| [46.5200, 54.4020) | 11 | 22.00% | 68.00% |
| [54.4020, 62.2840) | 5 | 10.00% | 78.00% |
| [62.2840, 70.1660) | 5 | 10.00% | 88.00% |
| [70.1660, 78.0480) | 4 | 8.00% | 96.00% |
| [78.0480, 85.9300) | 2 | 4.00% | 100.00% |
概率分布检验
W统计量: 0.1198P值: 0.8871
数据符合正态分布
均值: [44.2874, 53.4074]
未发现异常值