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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
48.2354
中位数
48.9300
众数
70, 11.31, 17.1, 20.01, 20.36, 23.1, 26.02, 29.04, 29.48, 30.15, 32.08, 33.36, 33.55, 36.51, 37.4, 37.56, 37.75, 37.91, 39.39, 39.8, 40.06, 40.39, 42.3, 42.84, 46.71, 48.45, 49.41, 50.33, 50.44, 50.94, 52.43, 52.83, 55.02, 55.27, 56.82, 57.29, 58.67, 60.63, 60.74, 66.74, 67.67, 67.8, 68.79, 68.99, 70.44, 70.75, 71.85, 77.19, 79.17, 88.93
标准差
17.8172
方差
317.4521
极差
77.6200
四分位距
23.9800
百分位数
P25: 36.7325
P50: 48.9300
P75: 60.7125
P90: 70.4710
分布分析
0.0789
右偏分布
-0.7087
平峰分布
36.9380%
变异很大
频率分布
| 区间 | 频数 | 频率 | 累积频率 |
|---|---|---|---|
| [11.3100, 19.0720) | 2 | 4.00% | 4.00% |
| [19.0720, 26.8340) | 4 | 8.00% | 12.00% |
| [26.8340, 34.5960) | 6 | 12.00% | 24.00% |
| [34.5960, 42.3580) | 10 | 20.00% | 44.00% |
| [42.3580, 50.1200) | 4 | 8.00% | 52.00% |
| [50.1200, 57.8820) | 9 | 18.00% | 70.00% |
| [57.8820, 65.6440) | 3 | 6.00% | 76.00% |
| [65.6440, 73.4060) | 9 | 18.00% | 94.00% |
| [73.4060, 81.1680) | 2 | 4.00% | 98.00% |
| [81.1680, 88.9300) | 1 | 2.00% | 100.00% |
概率分布检验
W统计量: 0.7131P值: 0.4901
数据符合正态分布
均值: [43.2967, 53.1741]
未发现异常值