The distance (in km) of 40 engineers from their residence to their place of work were found as follows.
|
5 |
3 |
10 |
20 |
25 |
11 |
13 |
7 |
12 |
31 |
|
19 |
10 |
12 |
17 |
18 |
11 |
32 |
17 |
16 |
2 |
|
7 |
9 |
7 |
8 |
3 |
5 |
12 |
15 |
18 |
3 |
|
12 |
14 |
2 |
9 |
6 |
15 |
15 |
7 |
6 |
12 |
What is the empirical probability that an engineer lives:
(i) less than 7 km from her place of work?
(ii) more than or equal to 7 km from her place of work?
(iii) within 1 / 2 km from her place of work?
Total numbers of engineers = 40
(i) Numbers of engineers living less than 7 km from her place of work = 9
Required probability = 9/40
(ii) Numbers of engineers living less than 7 km from her place of work = 40 - 9 = 31
Required probability = 31/40
(iii) Numbers of engineers living less than 7 km from her place of work = 0
Required probability = 0/40 = 0
