Find the range of the following data 92629−1062273424123133023413−95−6−4
25
34
43
44
Range is the difference between the largest and the smallest observation. Range = 34-(-10)=44
Find the mean deviation from the mean for the following data :
(i) Classes0−10010−200200−300300−400400−500500−600600−700700−800Frequencies489107543
(ii) Classes95−105105−115115−125125−135135−145145−155Frequencies91326263012
(iii) Classes0−1010−2020−3030−4040−5050−60Frequencies68141642