[Solution Library] Check whether the following can define probability distributions. Justify your answers. f(x)=x/9 for x=0,1,2,3,4 (5 pts) f(x)=(4-x)/(6) for
Question: Check whether the following can define probability distributions. Justify your answers.
- \(f(x)=\frac{x}{9} \quad\) for \(x=0,1,2,3,4 \quad\) (5 pts)
- \(f(x)=\frac{4-x}{6} \quad\) for \(x=2,3 \quad\) (5 pts)
- \(\quad f(x)=\frac{2 x+1}{15} \quad\) for \(x=1,2,3,4,5\)
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