STAT 201 Normal Approximation

# STAT 201 Normal Approximation - STAT 201 Recitation May to...

This preview shows pages 1–6. Sign up to view the full content.

Click to edit Master subtitle style 9/26/11 STAT 201 Recitation May 21st, 2010

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
9/26/11 Quick Review of Binomial Distribution Constant success probability π (or denoted as p sometime) Mean µ= n π Standard deviation 1- n σ π =
9/26/11 How to figure out Binomial Distribution problems? When n is small (n≤25), we use Binomial table to figure out the binomial problems But…. If n>25, now how to figure them out??? Use Normal Approximation! That is, convert a binomial distribution problem to be a normal distribution problem.

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Click to edit Master subtitle style 9/26/11 Normal Approximation Of The Binomial Distribution: then a binomial distribution can be approximated as normal distribution with µ= n π If n, and   are such that: π n  ≥5 π n (1- )  π ≥ 5 1- n σ π =
9/26/11 Example Problem: A hotel has 100 rooms and the probability a room is occupied on any given night is 0.6. Assume the conditions

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

## This note was uploaded on 09/26/2011 for the course STAT 201 taught by Professor Drex during the Spring '04 term at Drexel.

### Page1 / 10

STAT 201 Normal Approximation - STAT 201 Recitation May to...

This preview shows document pages 1 - 6. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online