Question

Question 1: Table 1 shows the number of customers visited by a salesman over an 80-week period. Table 1: Customers Visited Over an 80-Week Period 68 64 75 82 68 60 62 88 76 93 73 79 88 73 60 93 71 59 85 75 61 65 75 87 74 62 95 78 63 72 66 78 82 75 94 77 69 74 68 60 96 78 89 61 75 95 60 79 83 71 79 62 67 97 78 85 76 65 71 75 65 80 73 57 88 78 62 76 53 74 86 67 73 81 72 63 76 75 85 77

e) Form a grouped frequency table beginning from 50-54 (using 5 as the class interval).

Answer 1

Given data is,

Data	68	64	75	82	68	60	62	88	76	93	73	79	88	73	60	93	71	59	85	75	61	65	75
	87	74	62	95	78	63	72	66	78	82	75	94	77	69	74	68	60	96	78	89	61	75	95
	60	79	83	71	79	62	67	97	78	85	76	65	71	75	65	80	73	57	88	78	62	76	53
	74	86	67	73	81	72	63	76	75	85	77

Class	frequency
50-54	1
55-59	2
60-64	13
65-69	10
70-74	12
75-79	21
80-84	5
85-89	9
90-94	3
95-99	4

it is a frequency distribution from given information starting with 50-54 and interval is 5