l. The following table gives the amount of time (in minutes} spent on the internet each evening by a two groups= children and parents. Compute coeicient of variation for two groups and interpret results. (3+3) Time spent on Internet 1012 1315 1613 19 2224 {1! 21 Na. nf children () 3 12 15 24 2 No. of arent f2 1 1'0 1'0 5 2 2a). The Earnings were recorded for each of 50 used car sales representatives in the last week before Christmas. The results are shown in the followin- y ou ed e uen distribution: seas49 35111-399 400449 ecu499 sea549 550599 Find the range of weekly earnings and coeicien't of range for weeklyr earnings. (1+1) 2b). The mean deviation about mean of l students weight is 15.!)3 pounds and its coefcient is H.095. 1What is the value of mean weight of 120 students? (2)