"Less than 7 km from her place to work" . What is the Empirical Probability that an Engineer lives
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9th
Maths
Probability
Empirical Probability
The distance (in km) of 40 ...
MATHS
The distance (in km) of 40 engineers from their residence to their place of work were found as follows:
5
19
7
12
3
10
9
14
10
12
7
2
20
17
8
9
25
18
3
6
11
11
5
15
13
32
12
15
7
17
15
7
12
16
18
6
31
2
3
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
2
1
km from her place of work?
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ANSWER
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
Answer:
9
40 is right amswer gandu