find the mean
6th question
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answer is 15.6 hope you will satisfy
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ranjith13:
bro time is important
do quick
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mean of 20 observation is 17
mean =sum of obesrvation /total obser
17=sum of observation/20
20×17 =340 then 340-40+12= 312 then new mean = 312/20 =15.6
mean =sum of obesrvation /total obser
17=sum of observation/20
20×17 =340 then 340-40+12= 312 then new mean = 312/20 =15.6
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