The following table gives the distribution of 100 accidents during seven days of the week of a given month.During the particular month there are 5 Mondays,Tuesday,and Wednesday and only 4 of each of the other day.calculate the number of accidents per day?
Day:-Sun Mon Tue Wed Thurs Fri Sat
No of Accidents :- 26 16 12 10 8 10 18
Answers
Given:
The following table gives the distribution of 100 accidents during seven days of the week of a given month.
During the particular month there are 5 Mondays,Tuesday,and Wednesday and only 4 of each of the other day.
Day:-Sun Mon Tue Wed Thurs Fri Sat
No of Accidents :- 26 16 12 10 8 10 18
To find:
Calculate the number of accidents per day?
Solution:
For calculating the number of accidents per day arithmetic mean will be calculated as follows:
m = No. of accidents
f = No. of times day occuring in a month
Day m f f × m
Sunday 25 4 25 × 4 = 100
Monday 16 5 16 × 5 = 80
Tueday 12 5 12 × 5 = 60
Wednesday 10 5 10 × 5 = 50
Thusrday 8 4 8 × 4 = 32
Friday 10 4 10 × 4 = 40
Saturday 18 4 18 × 4 = 72
N = 31 ∑fm = 434
a = ∑fm/N
= 434/31
= 14
Thus the number of accidents per day is 14.