The probability distribution of a random variable $X$ is given by:
$X = x$ $1$ $2$ $3$ $4$ $P(X = x)$ $1/10$ $2/10$ $3/10$ $4/10$
Then the cumulative distribution function (c.d.f.) $F(x)$ of $X$ is given by:
| $X = x$ | $1$ | $2$ | $3$ | $4$ |
| $P(X = x)$ | $1/10$ | $2/10$ | $3/10$ | $4/10$ |
Then the cumulative distribution function (c.d.f.) $F(x)$ of $X$ is given by:
- A
$X = x$ $1$ $2$ $3$ $4$ $F(X = x)$ $1/10$ $3/10$ $6/10$ $1$ - B
$X = x$ $1$ $2$ $3$ $4$ $F(X = x)$ $3/10$ $1/10$ $6/10$ $1$ - C
$X = x$ $1$ $2$ $3$ $4$ $F(X = x)$ $1/10$ $3/10$ $5/10$ $1/10$ - D
$X = x$ $1$ $2$ $3$ $4$ $F(X = x)$ $1/10$ $6/10$ $3/10$ $1$
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Medium
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For the following probability distribution of a random variable $X$, the Expected value $E(X)$ and Variance $Var(X)$ of $X$ are respectively: $X=x$ $1$ $2$ $3$ $P(X=x)$ $1/5$ $2/5$ $2/5$
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DifficultMHT CET 2026
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