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 | Active Topics | Members | Search | FAQ
Username:
Password:
Save Password
Forgot your Password?

 All Forums
 Homework Help Forums
 Probability and Statistics
 Probability Problem. Please Help
 New Topic  Topic Locked
 Printer Friendly
Author Previous Topic Topic Next Topic  

Lisa
New Member

USA
1 Posts

Posted - 10/08/2007 :  15:19:55  Show Profile
Please help me with this textbook problem. I'm practicing problems for an upcoming test and this one has stumped me me. Thanks.


New Jersey Turnpike has a posted speed limit of 60 mph. A survey of drivers on this turnpike revealed the following facts:

1. 14% of the drivers on this highway were African Americans.

2. 98% of the drivers were exceeding speed limit

3. Of these violators, 15% of the drivers were African American.

4. Of the drivers stopped for speeding by the New Jeresy police, 35% were African Americans.


Answer the following questions:

(a). Find the probability that a driver is African American and exceeding the speed limit.

(b.) Given a driver is exceeding the speed limit, what is the probability that the driver isn't African American.

(c.) Given that a driver is stopped by the New Jersey police for speeding, what is the probability that the driver isn't African American.
Go to Top of Page

Subhotosh Khan
Advanced Member

USA
9117 Posts

Posted - 10/09/2007 :  15:17:31  Show Profile
quote:
Originally posted by Lisa

Please help me with this textbook problem. I'm practicing problems for an upcoming test and this one has stumped me me. Thanks.


New Jersey Turnpike has a posted speed limit of 60 mph. A survey of drivers on this turnpike revealed the following facts:

1. 14% of the drivers on this highway were African Americans.

2. 98% of the drivers were exceeding speed limit

3. Of these violators, 15% of the drivers were African American.

4. Of the drivers stopped for speeding by the New Jeresy police, 35% were African Americans.


Answer the following questions:

(a). Find the probability that a driver is African American and exceeding the speed limit.

(b.) Given a driver is exceeding the speed limit, what is the probability that the driver isn't African American.

(c.) Given that a driver is stopped by the New Jersey police for speeding, what is the probability that the driver isn't African American.


These are straight-forward problems.

Show us your work - and tell us exactly where you are stuck - so that we would know where to begin to help you.
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 0.03 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 Nov 2014