Question
An insurance company selected 1600 drivers at random in a particular city to find a relationship between age and number of accidents. The data obtained are given in the following table:
|
No. of accidents (in one year) |
|||||
|
Age of drivers (in years) |
0 |
1 |
2 |
3 |
More than 3 |
|
18–25 |
320 |
125 |
75 |
45 |
30 |
|
25-40 |
400 |
45 |
50 |
15 |
10 |
|
40-55 |
150 |
85 |
13 |
8 |
10 |
|
Above 55 |
150 |
25 |
17 |
20 |
7 |
Find the number of drivers
(a) in the age of 25–40 years and has more than 2 accidents in the year.
(b) the age is above 40 years and has accidents more than 1 but less than 3.
Solution
(a) The number of drivers in the age of 25-40 years and has more than 2 accidents in the year = 15+10 = 25
(b) The number of drivers the age of whose is 40 years and has accidents more than 1 but less than 3 = 13 + 17 = 30.
