17. Class Interval Class Boundaries Class Mark, x i Frequency, f i Relative Freq’y. %

18. Class Interval Class Boundaries Class Mark, x i Frequency, f i Relative Freq’y. %

19. Class Interval Class Boundaries Class Mark, x i Frequency, f i Relative Freq’y. %

20. Class Interval Class Boundaries Class Mark, x i Frequency, f i Relative Freq’y. %

21. Class Interval Class Boundaries Class Mark, x i Frequency, f i Relative Freq’y. %

22. Class Interval Class Boundaries Class Mark, x i Frequency, f i Relative Freq’y. %

23. 1.091.922.311.792.28 1.741.471.970.851.24 1.582.031.702.172.55 2.111.861.901.681.51 1.640.721.691.851.82 1.792.461.882.081.67 1.371.931.401.642.09 1.751.632.371.751.69

24. 1.091.922.311.792.28 1.741.471.970.851.24 1.582.031.702.172.55 2.111.861.901.681.51 1.640.721.691.851.82 1.792.461.882.081.67 1.371.931.401.642.09 1.751.632.371.751.69 Class Interval 0.72 – 1.02 1.03 – 1.33 1.34 – 1.64 1.65 – 1.95 1.96 – 2.26 2.27 – 2.57

25. Class IntervalClass BoundariesClass Mark, x i 0.72 – 1.020.715-1.0250.87 1.03 – 1.331.025-1.3351.18 1.34 – 1.641.335-1.6451.49 1.65 – 1.951.645-1.9551.80 1.96 – 2.261.955-2.2652.11 2.27 – 2.572.265-2.5752.42

26. 1.091.922.311.792.28 1.741.471.970.851.24 1.582.031.702.172.55 2.111.861.901.681.51 1.640.721.691.851.82 1.792.461.882.081.67 1.371.931.401.642.09 1.751.632.371.751.69 Class Boundaries Frequency, f i 0.715-1.0252 1.025-1.3352 1.335-1.6458 1.645-1.95517 1.955-2.2656 2.265-2.5755

27. Class IntervalClass Boundaries Class Mark, x i Frequency, f i Relative Freq’y. % 0.72 – 1.020.715-1.0250.8725.00 1.03 – 1.331.025-1.3351.1825.00 1.34 – 1.641.335-1.6451.49820.00 1.65 – 1.951.645-1.9551.801742.50 1.96 – 2.261.955-2.2652.11615.00 2.27 – 2.572.265-2.5752.42512.50

29. Class Interval Class Boundaries Class Mark, x i Freq’y, f i Cumulative Frequency, cf i Relative Cum. Freq’y. % 0.72 – 1.020.715-1.0250.87225.00 1.03 – 1.331.025-1.3351.182410.00 1.34 – 1.641.335-1.6451.4981230.00 1.65 – 1.951.645-1.9551.80172972.50 1.96 – 2.261.955-2.2652.1163587.50 2.27 – 2.572.265-2.5752.42540100.00

48. 6.726.776.826.706.786.706.626.756.66 6.646.766.736.806.726.76 6.68 6.666.626.726.766.706.786.766.676.70 6.726.746.816.796.786.666.76 6.72