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An urn contains $\mathbf{5}$ red and $\mathbf{2}$ black balls. Two balls are randomly drawn. Let $\mathrm{X}$ represent the number of black balls. What are the possible values of $\mathrm{X}$ ?. Is $\mathrm{X}$ a random variable?
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These two balls may be selected as RR, RB, BR, BB, where $R$ represents red and $B$ represents black ball. variable $X$ has the value $0,1,2$, i.e., there may be no black balls, may be one black ball, or both the balls are black. Yes, $\mathrm{X}$ is a random variable.
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