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Question: Answered & Verified by Expert
The probability distribution of a random variable $\mathrm{X}$ is


Then the standard deviation of $\mathrm{X}$ is
MathematicsProbabilityAP EAMCETAP EAMCET 2017 (26 Apr Shift 2)
Options:
  • A 1
  • B 2
  • C 4
  • D 7
Solution:
1214 Upvotes Verified Answer
The correct answer is: 2
No solution. Refer to answer key.

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