| Descriptive Statistics of Crash Frequency on I-90 in Minnesota (2010-2014) | |
| Count | 994 |
| Mean | 0.773 |
| Standard Error | 0.041 |
| Minimum | 0.0 |
| Maximum | 7.0 |
| Skewness | 2.32 |
| Kurtosis | 9.81 |
| Shapiro-Wilk | 0.673 |