The probability distribution of a random variable $\mathrm{X}$ is Then the standard deviation of…

The probability distribution of a random variable $\mathrm{X}$ is
Then the standard deviation of $\mathrm{X}$ is
  1. 1
  2. 2
  3. 4
  4. 7

Solution

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Asked in: AP EAMCET 2017 (26 Apr Shift 2)

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