The mean of a set of observations is x . If each observation is divided by α,α ≠ 0 and…

Mathematics · JEE Main · NTA ExamsStatistics and Probability

The mean of a set of observations is \(\bar{x}\). If each observation is divided by α,α ≠ 0 and then is increased by 10, then the mean of the new set is
  1. \(\frac{\bar{x}}{\alpha}\)
  2. \(\frac{\bar{x}+10}{\alpha}\)
  3. \(\frac{\bar{x}+10 \alpha}{\alpha}\)
  4. \(\alpha \bar{x}+10\)

Answer

(C) x +10

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