Subject: Engineering Data Analysis

1. The data below shows the mass of 40 students in a class. The measurement is to the nearest kg. (10 points each) 6A 70 57 73 55 59 64 72 7B 48 58 54 69 51 63 78 70 64 65 57 71 78 76 62 4D 66 62 76 61 63 63 76 5E 76 71 61 53 56 67 71 With an interval of 5. a. Construct a frequency table for the data using an appropriate scale. b. Variance c. Standard Deviation d. Mean Deviation