1.

For a Pascal distribution, the probability of occurrence of a event x is given by _____

A. \(p(x)=\left(x-1 \atop r-1\right) p^x (1-p)^{x-r}\)
B. \(p(x)=\left(r-1 \atop x-1\right) p^x (1-p)^{x-r}\)
C. \(p(x)=\left(x-1 \atop r-1\right) p^x (1-p)^{1-r}\)
D. \(p(x)=\left(x-1 \atop r-1\right) p^x (1-p)^{x-1}\)
Answer» B. \(p(x)=\left(r-1 \atop x-1\right) p^x (1-p)^{x-r}\)


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