Hi,

I'm having trouble with this problem:

http://users.encs.concordia.ca/~b_zgeb/problem10.png

This is my work so far:

http://users.encs.concordia.ca/~b_zg...m10-answer.png

The problem is the . 30 seems like a ridiculous value for normal distribution and I have a feeling it's supposed to be 3. Any thoughts?

Bronson