Find the sum of deviations of all observation's of the data 5,8,10,15,22 from their mean
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mean =5+8+10+15+22=60/5=12
deviation of each number from mean value=
(12-5)=7 ,(12-8)=4 ,(12-10)=2 ,(12-15) =-3 ,(12-22)
=-10. therefore summation of deviations =
7+4+2+(-3)+(-10)=13 - 13=0
deviation of each number from mean value=
(12-5)=7 ,(12-8)=4 ,(12-10)=2 ,(12-15) =-3 ,(12-22)
=-10. therefore summation of deviations =
7+4+2+(-3)+(-10)=13 - 13=0
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