New User Special Price Expires in

Let's log you in.

Sign in with Facebook


Don't have a StudySoup account? Create one here!


Create a StudySoup account

Be part of our community, it's free to join!

Sign up with Facebook


Create your account
By creating an account you agree to StudySoup's terms and conditions and privacy policy

Already have a StudySoup account? Login here

MATH 130, Lesson 4.4

by: Grace Heavey

MATH 130, Lesson 4.4 Statistics 130L

Marketplace > Marist College > Math > Statistics 130L > MATH 130 Lesson 4 4
Grace Heavey


Preview These Notes for FREE

Get a free preview of these Notes, just enter your email below.

Unlock Preview
Unlock Preview

Preview these materials now for free

Why put in your email? Get access to more of this material and other relevant free materials for your school

View Preview

About this Document

Notes for lesson 4.4
Statistics 130L
Dr. Sebesta
Class Notes
25 ?




Popular in Statistics 130L

Popular in Math

This 2 page Class Notes was uploaded by Grace Heavey on Wednesday October 12, 2016. The Class Notes belongs to Statistics 130L at Marist College taught by Dr. Sebesta in Fall 2016. Since its upload, it has received 4 views. For similar materials see Statistics 130L in Math at Marist College.

Similar to Statistics 130L at


Reviews for MATH 130, Lesson 4.4


Report this Material


What is Karma?


Karma is the currency of StudySoup.

You can buy or earn more Karma at anytime and redeem it for class notes, study guides, flashcards, and more!

Date Created: 10/12/16
Intro to Statistics 4.4 Probability & The Multiplication Rule Chapter 4 begins our discussion of probability. In section 1 &2 we learned the basics of probability and in section 3 we learned the addition rule. This section continues our discussion of probability with the multiplication rule,used when you want to find the probability of Event A AND Event B happening. 4.3 Multiplication Rule: Notation: P(A and B) - probability that eventA occurs on the first trial and event B occurs on the second trial P(B|A) - probability of event B givenA probability that event B happens given that eventA already occurred Formal Multiplication Rule P(A and B)= P(A)-P(B|A) Intuitive Multiplication Rule: To find the probability of event a and event b multiply the probability of event a by the probability of event b taking into consideration that event a already happened independent: the probability of event a doesn't affect the probability of event b ex:coin toss,rolling a single die,pulling one card and replace it dependent: the occurrence of event a affects the probability of event b ex:bag of marbles,2 blue,3 red and don't replace P(Blue and Red)= 2/5 x 3/4 = 6/20 P(Blue) = 2/5 P(Red) = 3/4 Sampling with replacement: when you return“eventA” back to sample pool Sampling without replacement: when you do not return“eventA” back to sample pool ▯1 Examples: With Replacement: draw a card from a deck of 52 P( queen and red) P(queen)=4/52 P(red)=26/52 P(queen and red)= (4/52)x (26/52)= 104/2704=.0385 Without Replacement: draw a card from deck of 52 P(queen and red) P(queen)= 4/52 P(red)= 26/51 (26/51)x(4/52)= 104/2652= .0392 Why the Multiplication RuleWorks: Quiz 1. T/F 2. multiple choice 5 choices P(both correct) P(T/F) = 1/2 P(multiple choice) = 1/5 (1/2)x(1/5)= 1/10 TA,TB,TC,TD,TE FA,FB,FC,FD,FE 10 sample choices 1 correct answer 1/10 ▯2


Buy Material

Are you sure you want to buy this material for

25 Karma

Buy Material

BOOM! Enjoy Your Free Notes!

We've added these Notes to your profile, click here to view them now.


You're already Subscribed!

Looks like you've already subscribed to StudySoup, you won't need to purchase another subscription to get this material. To access this material simply click 'View Full Document'

Why people love StudySoup

Jim McGreen Ohio University

"Knowing I can count on the Elite Notetaker in my class allows me to focus on what the professor is saying instead of just scribbling notes the whole time and falling behind."

Kyle Maynard Purdue

"When you're taking detailed notes and trying to help everyone else out in the class, it really helps you learn and understand the I made $280 on my first study guide!"

Steve Martinelli UC Los Angeles

"There's no way I would have passed my Organic Chemistry class this semester without the notes and study guides I got from StudySoup."

Parker Thompson 500 Startups

"It's a great way for students to improve their educational experience and it seemed like a product that everybody wants, so all the people participating are winning."

Become an Elite Notetaker and start selling your notes online!

Refund Policy


All subscriptions to StudySoup are paid in full at the time of subscribing. To change your credit card information or to cancel your subscription, go to "Edit Settings". All credit card information will be available there. If you should decide to cancel your subscription, it will continue to be valid until the next payment period, as all payments for the current period were made in advance. For special circumstances, please email


StudySoup has more than 1 million course-specific study resources to help students study smarter. If you’re having trouble finding what you’re looking for, our customer support team can help you find what you need! Feel free to contact them here:

Recurring Subscriptions: If you have canceled your recurring subscription on the day of renewal and have not downloaded any documents, you may request a refund by submitting an email to

Satisfaction Guarantee: If you’re not satisfied with your subscription, you can contact us for further help. Contact must be made within 3 business days of your subscription purchase and your refund request will be subject for review.

Please Note: Refunds can never be provided more than 30 days after the initial purchase date regardless of your activity on the site.