Answer:
Step-by-step explanation:
(i) Total number of persons whose salary is reduced by more than 30%, is
(a) 10 (b) 20 (c) 25 (d) 15(ii) Total number of persons whose salary is reduced by atmost 40%, is
(a) 15 (b) 10 (c) 16 (d) 8(iii) The modal class is
(a) 50-60 (b) 60-70 (c) 70-80 (d) 80-90(iv) The median class of the given data is
(a) 50-60 (b) 60-70 (c) 70-80 (d) 80-90(v) The empirical relationship between mean, median and mode is
(a) 3 Median = Mode + 2 Mean (b) 3 Median = Mode - 2 Mean
(c) Median = 3 Mode - 2 Mean (d) Median = 3 Mode + 2 Mean