road package:MASS R Documentation _R_o_a_d _A_c_c_i_d_e_n_t _D_e_a_t_h_s _i_n _U_S _S_t_a_t_e_s _D_e_s_c_r_i_p_t_i_o_n: A data frame with the annual deaths in road accidents for half the US states. _U_s_a_g_e: road _F_o_r_m_a_t: Columns are: '_s_t_a_t_e' name. '_d_e_a_t_h_s' number of deaths. '_d_r_i_v_e_r_s' number of drivers (in 10,000s). '_p_o_p_d_e_n' population density in people per square mile. '_r_u_r_a_l' length of rural roads, in 1000s of miles. '_t_e_m_p' average daily maximum temperature in January. '_f_u_e_l' fuel consumption in 10,000,000 US gallons per year. _S_o_u_r_c_e: Imperial College, London M.Sc. exercise