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Statistics 21 - Lecture 1
 | Introductory Probability and Statistics for Business |
Statistics: Standard Deviation
 | Review of what we've learned. Introduction to the standard deviation. |
Lyfe Jennings "Statistics" (Official Music Video)
 | ? 2010 WMG Lyfe Jennings drops his official music video for his controversial yet educational new single "Statistics". "Statistics" is dedicated to single women looking for love, and was inspired by Steve Harvey's book, "Act Like a Lady, Think Like a Man". Lyfe Jennings' new album "I Still Believe" available August 31st 2010! |
Amazing Statistics
 | This mind blowing information shows how the virtual and online world is changing so rapidly. Did you know there are 31 billion searches on Google every single month? In 2006 it was only 2.7 billion. In 1992 the first commercial text message was sent. Today the number of messages sent and received every day exceeds the population of the planet..... Courtesy of Mr Karl Fisch and Dr Scott Mcleod. |
Statistics: The Average
 | Introduction to descriptive statistics and central tendency. Ways to measure the average of a set: median, mean, mode |
C1: WHAT IS STATISTICS?
 | WHAT IS STATISTICS? o The mathematics of the collection, organization, and interpretation of numerical data, especially the analysis of population characteristics by inference from sampling o The subject of statistics can be divided into descriptive statistics - describing data, and inferential Statistics - drawing conclusions from data (Source: dictionary.com) WHY SHOULD WE STUDY STATISTICS? Descriptive Statistics : To describe a phenomenon o Summary and presentation of data Inferential Statistics: To draw conclusions o Making statements or predictions about the population based on statistical information POPULATION & SAMPLE POPULATION: is the group of all objects or individuals of interest. o All York Students o Canadians SAMPLE: is a subset of the population o 40 York students chosen at random o People interviewed for the latest election poll o We refer to the individual components of a sample as "observations" PARAMETERS AND STATISTICS Very generally we can say that: o Populations are described by PARAMETERS o Samples are described by STATISTICS For example: Parameter: the average hair length of all domestic cats (reflects the true value for the population) Statistic: the average hair length of cats in my sample (it's an estimate) Statistical inference: is the process of drawing a conclusion about the population based on the sample (with certain levels of confidence and significance) FINAL DEFINITIONS A variable is a characteristic of a population or sample. o student ... |
Introductory Statistics - Chapter 1: Introduction
 | A video summary of chapter 1 in Perdisco's Introductory Statistics textbook. To find out more, visit www.perdisco.com/introstats |
Lies, damned lies and statistics (about TEDTalks)
 | www.ted.com In a brilliantly tongue-in-cheek analysis, Sebastian Wernicke turns the tools of statistical analysis on TEDTalks, to come up with a metric for creating "the optimum TEDTalk" based on user ratings. How do you rate it?TEDTalks is a daily video podcast of the best talks and performances from the TED Conference, where the world's leading thinkers and doers give the talk of their lives in 18 minutes. TED stands for Technology, Entertainment, Design, and TEDTalks cover these topics as well as science, business, development and the arts. Closed captions and translated subtitles in a variety of languages are now available on TED.com, at http Watch a highlight reel of the Top 10 TEDTalks at www.ted.com |
Statistics - Calculating Variance
 | Statistics - Calculating Variance. I give the formula and show one example of finding variance. For more free videos, visit PatrickJMT.com |
Statistics: Decisions Through Data: Unit 1 What Is Statistics
 | Statistics: Decisions Through Data is an introductory statistics course that unravels the statistical arguments behind surveys, polls, experiments, and product claims. Each episode begins with a documentary segment that engages students' interest, and then teaches skills to gather data, analyze patterns, and draw conclusions about real-world issues. |
