Young Women, Blacks Still Have High Hopes
2d of 2 articles on how recession and other developments have changed personal expectations of Amers says Gallup poll survey commissioned by NY Times shows growing segment of public has doubts about doctrines it grew up with: that things will always get better and that, if they work hard, they will get the things in life they want; graph shows percent in survey who rate future significantly better than present and percent in survey who rate future worse than present (M)