Write the class size and class limits in each of the following: (i) 104, 114, 124, 134, 144, 154 and 164 (ii) 47, 52, 57, 62, 67, 72, 77, 82, 87, 92, 97 and 102 (iii) 12.5, 17.5, 22.5, 27.5, 32.5, 37.5, 42.5, 47.5

Question

Philoid · Accepted Answer

(i) 104, 114, 124, 134, 144, 154 and 164

Class size = 114 – 104 = 10

Class mark	Lower class limit	Upper class limit	Class limit
104	99	109	99-109
114	109	119	109-119
124	119	129	119-129
134	129	139	129-139
144	139	149	139-149
154	149	159	149-159
164	159	169	159-169

(ii) 47, 52, 57, 62, 67, 72, 77, 82, 87, 92, 97 and 102

Class mark = 52 – 47 = 5

Class mark	Lower class limit	Upper class limit	Class- limit
47	44.5	49.5	44.5-49.5
52	49.5	54.5	49.5-54.5
57	54.5	59.5	54.5-59.5
62	59.5	64.5	59.5-64.5
67	64.5	69.5	64.5-69.5
72	69.5	74.5	69.5-74.5
77	74.5	79.5	74.5-79.5
82	79.5	84.5	79.5-84.5
87	84.5	89.5	84.5-89.5
92	89.9	94.5	89.9-94.5
97	94.5	99.5	94.5-99.5
102	99.5	104.5	99.5-104.5

(iii) 12.5, 17.5, 22.5, 27.5, 32.5, 37.5, 42.5, 47.5

Class mark = 17.5 – 12.5 = 5

Class mark	Lower class limit	Upper class limit	Class limit
12.5	10	15	10-15
17.5	15	20	15-20
22.5	20	25	20-25
27.7	25	30	25-30
32.5	30	35	30-35
37.5	35	40	35-40
42.5	40	45	40-45
47.5	45	50	45-50

Write the class size and class limits in each of the following:(i) 104, 114, 124, 134, 144, 154 and 164(ii) 47, 52, 57, 62, 67, 72, 77, 82, 87, 92, 97 and 102(iii) 12.5, 17.5, 22.5, 27.5, 32.5, 37.5, 42.5, 47.5

Write the class size and class limits in each of the following:
(i) 104, 114, 124, 134, 144, 154 and 164

(ii) 47, 52, 57, 62, 67, 72, 77, 82, 87, 92, 97 and 102

(iii) 12.5, 17.5, 22.5, 27.5, 32.5, 37.5, 42.5, 47.5