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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
48.9132
中位数
48.4950
众数
22.73, 26.89, 27.38, 27.62, 33.99, 34.33, 35.2, 35.53, 36.67, 37.57, 38.14, 39.13, 39.24, 39.82, 40.97, 42.52, 43.37, 43.63, 44.65, 45.53, 45.9, 46.31, 46.36, 47.61, 48.38, 48.61, 48.92, 49.24, 49.67, 51.21, 51.44, 51.89, 52.57, 52.63, 53.63, 55.93, 56.96, 58.88, 59.72, 59.81, 60.3, 61.4, 61.81, 64.82, 67.31, 67.79, 70.45, 71.91, 72.75, 76.54
标准差
12.6624
方差
160.3356
极差
53.8100
四分位距
19.0150
百分位数
P25: 39.3850
P50: 48.4950
P75: 58.4000
P90: 67.3580
分布分析
0.1569
右偏分布
-0.5158
平峰分布
25.8874%
变异中等
频率分布
| 区间 | 频数 | 频率 | 累积频率 |
|---|---|---|---|
| [22.7300, 28.1110) | 4 | 8.00% | 8.00% |
| [28.1110, 33.4920) | 0 | 0.00% | 8.00% |
| [33.4920, 38.8730) | 7 | 14.00% | 22.00% |
| [38.8730, 44.2540) | 7 | 14.00% | 36.00% |
| [44.2540, 49.6350) | 10 | 20.00% | 56.00% |
| [49.6350, 55.0160) | 7 | 14.00% | 70.00% |
| [55.0160, 60.3970) | 6 | 12.00% | 82.00% |
| [60.3970, 65.7780) | 3 | 6.00% | 88.00% |
| [65.7780, 71.1590) | 3 | 6.00% | 94.00% |
| [71.1590, 76.5400) | 3 | 6.00% | 100.00% |
概率分布检验
W统计量: 0.5392P值: 0.5832
数据符合正态分布
均值: [45.4034, 52.4230]
未发现异常值