The mean of 10 observation is 17. If 3 substract of each observation. What will the new mean
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let the sum of 10 obs. be x
mean of 10 obs. = x/10 = 17 => x = 170
if 3 is sub. from each obs. then (3*10) will be subtracted from the sum
the resulting sum will be 140
new mean = 140/10 = 14
mean of 10 obs. = x/10 = 17 => x = 170
if 3 is sub. from each obs. then (3*10) will be subtracted from the sum
the resulting sum will be 140
new mean = 140/10 = 14
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