# Homework Help: Probability challenge help

1. Sep 17, 2006

### yeungmei

Hi, I have no idea of this ±.03

A population proportion is .40. A simple random sample of size 200 will be taken and the sample proportion 'p' will be used to estimate the population proportion.:surprised

a. what is the probability that the sample proportion will be within ±.03 of the population proportion?

2. Sep 18, 2006

### e(ho0n3

Are you confused as to what ±.03 means?