Given below is the frequency distribution of wages (in Rs.) of 30 workers in a certain factory :
Wages (in Rs.) | 110-130 | 130-150 | 150-170 | 170-190 | 190-210 | 210-230 | 230-250 |
No. of workers | 3 | 4 | 5 | 6 | 5 | 4 | 3 |
A worker is selected atr random. Find the probability that his wages are :
(i) less than Rs. 150
(ii) at least Rs. 210
(iii) more than or equal to 150 but less than Rs. 210.
Given,
Total number of workers = 30
(i) Probability that his wages are less than rs 150 =
(ii) Probability that his wages are at least rs 210 =
(iii) Probability that his wages are more than or equals to rs 150 but less than rs 200 =
An Elementary Event is any single outcome or element of a sample space.