group hours 1.00 44.00 1.00 40.00 1.00 44.00 1.00 39.00 1.00 25.00 1.00 37.00 1.00 31.00 1.00 40.00 1.00 22.00 1.00 34.00 1.00 39.00 1.00 20.00 1.00 39.00 1.00 42.00 1.00 41.00 2.00 36.00 2.00 40.00 2.00 37.00 2.00 35.00 2.00 39.00 2.00 40.00 2.00 36.00 2.00 38.00 2.00 24.00 2.00 27.00 2.00 29.00 2.00 24.00 2.00 45.00 2.00 44.00 2.00 44.00 3.00 52.00 3.00 50.00 3.00 51.00 3.00 52.00 3.00 45.00 3.00 49.00 3.00 47.00 3.00 46.00 3.00 47.00 3.00 47.00 3.00 46.00 3.00 45.00 3.00 50.00 3.00 47.00 3.00 49.00 The senior class at a charter school specializing in the physical sciences surveyed students in three...