The mean of 15 observations is 10. If 2 is subtracted from each observation. Find the new mean?
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120÷10 that is 12 . so the answer is 12
aditya608547:
i understand
please 2subtract - each observed but not answer 120
plz
Answer me
means we have 15 obv. and subtracted 2 from each so total subtracted is 30 and 15×2 so total sum becomes 120
amd obs . is 10 so mean is 12
15*2 =30 how is 120 sorry i am asking
plz
150-30=120. bcz 15 obs and we subtracted 2 from each so total subtraction 30
how is subtracted 30
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If 2 is subtracted from each observation, then the mean is also subtracted by 2. So the new mean is 8.
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