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Questions  >>  CBSE XII  >>  Math  >>  Probability
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Q)

True or False: Another name for the mean of a probability distribution is expected value.

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A)
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  • The mean of random variable $X=x_{1},\dots,x_{n}$ with respective probabilities $p_{1},\dots,p_{n}$
  • $\overline{X}$= mean.
  • $\overline{X}=p_{1}x_{1}\dots+p_{n}x_{n}=\sum x_{i}p_{i}$
  • $E{X}=\sum^{n}_{n=1}x_{i}p_{i}$
Yes mean of random variable $X$ is also called expected value.
The given statement is True
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