testing header
Math Goodies is a free math help portal for students, teachers, and parents.
Free Math
Newsletter
 
 
Interactive Math Goodies Software

Buy Math Goodies Software
testing left nav
Math Forums @ Math Goodies
Math Forums @ Math Goodies
Home | Profile | Register | Active Topics | Members | Search | FAQ
Username:
Password:
Save Password
Forgot your Password?

 All Forums
 Homework Help Forums
 Probability and Statistics
 Permutation question
 New Topic  Topic Locked
 Printer Friendly
Author Previous Topic Topic Next Topic  

CandaceK
Junior Member

USA
4 Posts

Posted - 09/03/2007 :  13:25:06  Show Profile
Given: Little League team that has 15 players on its roster,

1)How many ways are ther to select 9 players for the starting lineup?

Here is what I did:

Forumla used Pk,n = k!/(n-k)!

P9,15 = 15!/6! = 1816214400 but the answer from the book is 362,880

What am I missing?
Go to Top of Page

peppers18
Advanced Member

Canada
124 Posts

Posted - 09/03/2007 :  14:07:52  Show Profile
I believe the book's answer is wrong. the book gave the answer to 9!=362880

but you are right. since there are different positions in baseball, order matters so it should be 15P9=1816214400
Go to Top of Page
  Previous Topic Topic Next Topic  
 New Topic  Topic Locked
 Printer Friendly
Jump To:
Math Forums @ Math Goodies © 2000-2004 Snitz Communications Go To Top Of Page
This page was generated in 0.05 seconds. Snitz Forums 2000
testing footer
About Us | Contact Us | Advertise with Us | Facebook | Blog | Recommend This Page




Copyright © 1998-2014 Mrs. Glosser's Math Goodies. All Rights Reserved.

A Hotchalk/Glam Partner Site - Last Modified 21 May 2014