×

Let's log you in.

or

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

×

or

Stats Chap 3 Notes

by: Michaela Zerbo

10

1

3

Stats Chap 3 Notes STAT 145

Michaela Zerbo
RIT
GPA 3.1

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

×
Unlock Preview

Short Chapter covering the Empirical and Deviations
COURSE
Intro to Stats
PROF.
Professor Nilay Sapio
TYPE
Class Notes
PAGES
3
WORDS
CONCEPTS
intro to statistics
KARMA
25 ?

Popular in Statistics

This 3 page Class Notes was uploaded by Michaela Zerbo on Tuesday September 13, 2016. The Class Notes belongs to STAT 145 at Rochester Institute of Technology taught by Professor Nilay Sapio in Fall 2016. Since its upload, it has received 10 views. For similar materials see Intro to Stats in Statistics at Rochester Institute of Technology.

×

Reviews for Stats Chap 3 Notes

×

×

What is Karma?

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

Date Created: 09/13/16
1    STAT 145  Introduction to Statistics 1  Chapter 3 ­ Numerically Summarizing Data  Terms    ​ ormulas        3.1 Measures of Central Tendency    Objectives: ​Understand Mean, Median, and Mode    Arithmetic Mean: ​The sum of ALL values or the number of observations    Median: ​ Mid value of the data when it is in ascending order    Mode: M ​ ost frequent occurrence in the data set    Range: ​Difference between the largest and smallest data values    EX.   Mean: 4.8  Why? Add the data and then divide by how many observations  there are.  Median:4.5  Why? Put them in ascending order and use the middle  number. If it’s in between 2 numbers, add them and then  divide by 2.  Mode: 4  Why? It’s the number that reoccurs the most.  Range: 4  Why? Take the highest number (7) and take away the lowest (3)      Dispersion:​ Spread of the data    2              Standard Deviation  (Variance):  ​ ​The square root  of sum of squared deviations  divided by the number of  observations   ★ Used for ​Population            Standard Deviation:​ ​The  square root of sum of squared  deviations divided by the  number of observations   ★ Used for ​Samples                      3          Empirical Rule: ​Provides a quick  estimate of the spread of data in a  normal distribution given the mean  and standard deviation

×

25 Karma

×

×

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

Bentley McCaw University of Florida

"I was shooting for a perfect 4.0 GPA this semester. Having StudySoup as a study aid was critical to helping me achieve my goal...and I nailed it!"

Amaris Trozzo George Washington University

"I made \$350 in just two days after posting my first study guide."

Bentley McCaw University of Florida

"I was shooting for a perfect 4.0 GPA this semester. Having StudySoup as a study aid was critical to helping me achieve my goal...and I nailed it!"

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

STUDYSOUP CANCELLATION 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 support@studysoup.com

STUDYSOUP REFUND POLICY

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: support@studysoup.com

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 support@studysoup.com