a,The number of class interval (k) for this question is...... b,The class width/size (C) is....... c,The upper limit of the second class is found to be..... d,The cumulative frequency of the third-class interval is..... e,The relative frequency of the fifth-class interval is...... f,The midpoint (x) of the second class interval is......

Suppose a consumer group asked 50 consumers to keep a yearly log of their shopping practices and that the following data represent the number of coupons used by each consumer over the yearly period. 81 68 71 100 94 70 78 47 66 70 82 110 105 60 21 70 65 58 21 70 66 90 78 98 38 27 90 24 82 59 49 77 54 81 64 39 69 107 25 21 21 115 103 118 89 82 93 89 87 76 From the above data, construct a relative cumulative frequency distribution table for the customers' wearly log shopping practices and answer the following question 1.1 to question 1.6