November 30, 2015

Homework Help: Math

Posted by Angie on Saturday, November 24, 2012 at 1:51pm.

You come home after dark, and porch light is out. You cannot tell which key opens the door.. you randomly try the 5 keys on your ring, 2 keys open your door.

Draw a tree diagram for the experiment &
Find the probability of opening the door on the first or second try.

Answer this Question

First Name:
School Subject:

Related Questions

More Related Questions