Pascal random variable

Kellie Evans shared this question 10 months ago
Needs Answer

The "Pascal random variable" calculator here

seems to be computing something else. Isn't it supposed to be a negative binomial random variable with n=number of successes? If so, P(X=k)=0 for k<n. The calculator is showing P(X=k)>0 for k=0 and other values less than n. Unless they're defining n differently or maybe they mean something else by Pascal?

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