what is the imperative probability that an engineer lives
(1) Less than 7 km from her place of work ?
(2) more than or equal to 7 km from her place of work ?
(3) within 1/2 km from her place of work
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Distance (in km.) No. of engineers
Less than 7 km. 9
More than 7 km. 31
Total 40
Total number of engineers =40
(i) Number of engineers living less than 7km from their place of work =9
P=
40
9
(ii) Number of engineers living more than or equal to 7km from their place of work =40−9=31
P=
40
31
(iii) Number of engineers living within
2
1
km from her place of work =0
P=
40
0
=0
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