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AP EAMCET2020MathematicsProbability

The following table represents the probability distribution of a random variable X for some k Q . Find the mean of X . array |c|c|c|c|c|c|c| =x & -2 & -1 & 0 & 1 & 2 & 3 (X=x) & 0.1 & k & 0.2 & 2 k & 0.3 & k array

Options

  1. A1.7
  2. B1.8
  3. C0.8
  4. D0.7

Correct answer

C. 0.8

Step-by-step solution

No solution. Refer to answer key.

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