For each of the following sets of data, determine the class boundaries, class midpoints and the cumulative frequencies a. Data of entrance exam scores for some 108 random students Class Class boundaries Mid point Frequency Cumulative limits req 90-98 99-107 22 108-116 117-125 28 126-134 b. Years of service for 75 employees in a department store Class Class Mid point Frequency Cumulative freq limits boundaries 1-5 21 6-10 25 11-15 15 16-20 0 21-25 26-30 c. Reaction time of some dogs to stimuli Class Class boundaries Mid point Frequency Cumulative freq limits 2.3-2.9 3.0-3.6 3.7-4.3 16 4.4-5.0 14 5.1-5.7 5