Question

2. A survey was conducted regarding the distance (in km) of 240 workers from their residence to their place
of work and the following data was collected:
Distance in km)
0 - 5
5 - 10
10 - 15
15 - 20
20 - 25
Number of workers
81
73
24
12
What is the probability that a worker lives (selected at random):
(a) less than 15 km from his/her place of work?
(b) more than or equal to 10 km from his/her place of work?​

Answer 1

Answer:

(a) sol:- Total no. of workers lives less than 15 km from his/ her place of work = 84+47+73= 204

Total no. of workers = 240

Therefore , P( less than 15 km from his / her place of work) = 204/240 = 51/60

The Correct answer of (a) is = 51/60..

(b) sol:- Total no.of workers lives more than or equal to 10 km from his/ her place of work = 73+ 24+12= 109

Total no. of workers = 240

Therefore , P( workers living more than or equal to 10 km) = 109/240

The Correct answer of (b) is = 109/240..

Explanation:

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Answer 2

Answer:

a.51/60.

b.109/240..….