the mean of ten observation is 20.if nine of observation are16,20,18,17,22,16,15,20,17,find the tenth observation
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Answered by
2
(200-161)=39............its a easy one
lalipapa123:
wt gd?
274amrit i'm not getting you?
simple answer formulas are good
just a simple methods of solving
nice :)
eeeeee.......................
@lalipapa123 u r an expert.....so u should have point it out easily wat i hav written i think so
yeah but i didn't got sudenly the trick behind it dude
ooooo
ooohhh
Answered by
4
mean= sum of observations/ no of observations
20 =60+20+18+17+22+16+15+20+17+*/10
200= 161*
200/161=*
20 =60+20+18+17+22+16+15+20+17+*/10
200= 161*
200/161=*
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