***Public and Private School Principle in the United States: A Statistical Profile, 1987-88 to 1993-94*****Table B5.-Standard errors for Table A5:  Percentage of public school principals by percentage           of free or reduced-price lunch recipients in their schools, by sex, race-ethnicity,           and age of principals:  1987-88, 1990-91, and 1993-94**--------------------------------------------------------------------------------------------------------------------------------------------                                                               Percentage of free or reduced-price lunch recipients in schools                                     -------------------------------------------------------------------------------------------------------                                              Less than 20%                          20-49%                             50% or more                                     -----------------------------        -----------------------------        -----------------------------Principal characteristics            1987-88    1990-91    1993-94        1987-88    1990-91    1993-94        1987-88    1990-91    1993-94--------------------------------------------------------------------------------------------------------------------------------------------     Sex Male                                  0.81       1.04       1.17           0.75       1.16       1.15           1.33       1.38       1.47 Female                                0.81       1.04       1.17           0.75       1.16       1.15           1.33       1.38       1.47Race-ethnicity American Indian/Alaska Native         0.16       0.20       0.18           0.25       0.19       0.12           0.38       0.24       0.17 Asian/Pacific Islander                0.05       0.11       0.20           0.12       0.19       0.21           0.26       0.44       0.33 Black non-Hispanic                    0.41       0.40       0.44           0.44       0.51       0.55           1.22       0.97       1.17 White non-Hispanic                    0.47       0.55       0.63           0.55       0.55       0.60           1.24       1.42       1.51 Hispanic                              0.23       0.34       0.34           0.19       0.38       0.37           0.66       1.09       1.06Total minority                         0.47       0.55       0.63           0.55       0.55       0.60           1.24       1.42       1.51Age Under 35                              0.39       0.41       0.30           0.59       0.54       0.29           0.54       0.42       0.43 35-39                                 0.66       0.66       0.63           0.72       0.66       0.75           1.15       0.95       0.65 40-44                                 0.65       1.10       0.93           0.87       1.10       1.11           1.14       1.24       1.08 45-49                                 0.76       1.10       1.09           0.93       0.94       0.90           1.25       1.16       1.23 50-54                                 0.68       0.97       1.16           0.70       0.90       1.11           0.90       1.24       1.31 55 or over                            0.63       1.02       0.78           0.70       0.72       0.84           1.16       1.34       1.18Average age                            0.12       0.18       0.13           0.17       0.18       0.19           0.25       0.25       0.22--------------------------------------------------------------------------------------------------------------------------------------------           SOURCE:  U.S. Department of Education, National Center for Education Statistics, Schools and Staffing Survey:  1987-88 (School Administratorand Public School Questionnaires), 1990-91 (Public School Administrator and School Questionnaires), and 1993-94 (Public School Principal and School Questionnaires).