C.P = ₹1305, S.P = ₹1035. What is the loss incurred?
Given below is the frequency distribution of wages (in ₹ ) of 30 workers in a certain factory:
A worker is selected at random. Find the probability that his wages are: (i) less than ₹ 250 (ii) at least ₹ 310 (iii) more than or equal to ₹ 250 but less than ₹ 310