Approximating distributions

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The Normal distribution as an approximation to the binomial X~B (n,p) If np>5 and nq>5 X can be approximated by V~N (np,npq) Continuity corrections apply
The normal distribution as an approximation to the poison X~Po(¥) If ¥>15 X can be approximated by Y~N(¥,¥) Continuity corrections apply
The poison as an approximation to the binomial X~B(n,p) If n>50 and np<5 X can be approximated by W~Po(np)
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