The variance of the data $2, 4, 6, 8, 10$ is

  • A
    $6$
  • B
    $7$
  • C
    $8$
  • D
    None of these

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The mean and variance of six observations are $8$ and $16$ respectively. If each observation is multiplied by $3$,then the new variance of the resulting observations is:

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