Hypergeometric

Question 1

Hyper Geometric: Written Form and parameters

Answer 1

Population of size N, r success in the class, N-r failures, n items in sample. Let X be # of success in samples then X~H(N,r,n)

Question 2

Hyper Geometric: Equation

Answer 2

[r C i * N-r C n-i]/(N C n)

Question 3

Hyper Geometric: Mean

Answer 3

(n* r)/N

Question 4

Hyper Geometric: Variance

Answer 4

n * (r/N) * ( 1 - r/N) * ((N-n)/(N-1))