mean of 4 observations is 12. if first second third and fourth observation are decreased by 1,2,3 and 4 respectively then find the new mean
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9.5 is answer of this
parikshit5:
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Mean = sum of observations/ number of observations
12= sum / 4
=>sum = 48
New sum will be 48-1-2-3-4=48-10=38
new mean = 38/4=9.5
HOPE IT HELPS!!
12= sum / 4
=>sum = 48
New sum will be 48-1-2-3-4=48-10=38
new mean = 38/4=9.5
HOPE IT HELPS!!
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