The following distribution gives the number of accidents met by 160 workers in a factory during a month.
Find the average number of accidents per worker.
No. of accidents (x): 0 1 2 3 4No. of workers (f): 70 52 34 3 1
Answers
average number of accidents per worker is 0.83125
• No. of frequency Fixi
accidents (Fi)
(Xi)
0 70 0
1 52 52
2 34 68
3 3 3
4 1 1
ΣFi=160 ΣFiXi=133
• Average no. of = ΣFiXi/ΣFi
accidents
• Average no. of = 133/160
accidents
• Average no. of = 0.83125
accidents
0.83 average accidents per worker
Step-by-step explanation:
number of accidents met by 160 workers
Number of accidents Workers f Total accidents
0 70 0
1 52 52
2 34 68
3 3 9
4 1 4
160 133
the average number of accidents per worker. = 133/160
= 0.83
0.83 accidents per week
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