XR04-10 The amount of time (in seconds)needed for assembly-line workers to completea weld in a car assembly plant in Adelaide wasrecorded for 40 workers.
69 60 75 74 68 66 73 76 63 67
69 73 65 61 73 72 72 65 69 70
64 61 74 76 72 74 65 63 69 73
75 70 60 62 68 74 71 73 68 67
Manually draw the following graphs:b A histogram with 12 classesc An ogive.
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