Summary statistics for accident dataset : by Jean Roth , jroth@nber.org , 18 Apr 2016 Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- state | 37,526 27.75244 16.13713 1 56 county | 37,526 89.56393 94.13515 0 840 month | 37,526 6.674812 3.365193 1 12 day | 37,526 15.61957 8.899383 1 99 hour | 37,526 13.32897 10.6543 0 99 -------------+--------------------------------------------------------- minute | 37,526 28.44756 18.69767 0 99 ve_forms | 37,526 1.534776 .7540451 1 32 persons | 37,526 2.683899 1.888077 1 48 peds | 37,526 .1703086 .4561683 0 11 nhs | 37,526 .5562277 1.495513 0 9 -------------+--------------------------------------------------------- road_fnc | 37,526 9.905825 14.89673 1 99 route | 37,526 3.539759 1.831344 1 9 sp_jur | 37,526 .0284336 .3461663 0 9 harm_ev | 37,526 17.15912 12.68208 1 99 man_coll | 37,526 1.241406 1.704937 0 9 -------------+--------------------------------------------------------- rel_junc | 37,526 1.819272 2.884027 1 99 rel_road | 37,526 2.509673 4.487685 1 99 traf_flo | 37,526 1.549139 1.108346 1 9 no_lanes | 37,526 2.547007 1.328904 1 9 sp_limit | 37,526 50.51586 14.45905 0 99 -------------+--------------------------------------------------------- alignmnt | 37,526 1.286974 .6824843 1 9 profile | 37,526 1.430155 1.108822 1 9 pave_typ | 37,526 2.31205 1.608239 1 9 sur_cond | 37,526 1.263657 .8181058 1 9 tra_cont | 37,526 3.99078 11.14557 0 99 -------------+--------------------------------------------------------- t_cont_f | 37,526 .6462186 1.298954 0 9 hit_run | 37,526 .0645153 .3463259 0 3 lgt_cond | 37,526 1.782071 1.028673 1 9 weather | 37,526 1.284789 1.043714 1 9 c_m_zone | 37,526 .0306721 .2233353 0 4 -------------+--------------------------------------------------------- not_hour | 37,526 41.38448 41.76347 0 99 not_min | 37,526 51.75281 37.00409 0 99 arr_hour | 37,526 39.11946 40.92009 0 99 arr_min | 37,526 51.78852 37.04916 0 99 hosp_hr | 37,526 56.89788 45.93011 0 99 -------------+--------------------------------------------------------- hosp_mn | 37,526 61.2275 43.01516 0 99 sch_bus | 37,526 .0035176 .0592054 0 1 cf1 | 37,526 1.081757 7.01746 0 99 cf2 | 37,526 .4042797 6.119798 0 99 cf3 | 37,526 .3751532 6.079006 0 99 -------------+--------------------------------------------------------- fatals | 37,526 1.117758 .4220639 1 10 day_week | 37,526 4.155359 2.113919 1 9 drunk_dr | 37,526 .4125406 .6267937 0 8 st_case | 37,526 278252.6 161296.5 10001 560132 city | 37,526 996.0504 1783.332 0 9999 -------------+--------------------------------------------------------- milept | 37,526 12795.66 33068.07 0 99999 year | 37,526 2000 0 2000 2000 tway_id | 0 rail | 0 latitude | 0 -------------+--------------------------------------------------------- longitud | 0 by Jean Roth , jroth@nber.org , 18 Apr 2016