1.

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 at 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.

Answer» 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 at 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.


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