Please help me find the right answers

Step Four: Find the Class Boundaries Raw Data: {3.5, 2.7, 1.6, 2.9, 1.7, 5.3, 7.5, 8.2, 4.6, 1.3, 4.7, 9.4, 7.6, 3.9, 3.2, 8.1, 4.9, 5.7, 2.6, 3.2, 6.5, 4.8, 3.5, 4.8, 9.2, 4.9, 1.1, 2, 6.4, 7.1} The gap between the first and second class is 0.1. What number should you subtract from each lower limit and add to each upper limit to find the class boundaries? Class Lower Class Boundary Upper Class Boundary 1.1 - 2.7 1.1 - 0.05 - 1.05 2.7 + 0.05 = 2.75 2.8 -4.4 2.8 - 0.05 4.4 + 0.05 = 4.45 4.5 -6.1 -0.05 = 4.45 6.1 + 0.05 = 6.15 6.2 -7.8 6.2- = 6.15 7.8 + 0.05 7.9 - 9.5 - 7.85 +0.05 = 9.55 Check