Random digit dialing (RDD) is a method for selecting people for involvement in telephone statistical surveys by generating telephone numbers at random. Random digit dialing has the advantage that it includes unlisted numbers that would be missed if the numbers were selected from a phone book. In populations where there is a high telephone-ownership rate, it can be a cost efficient way to get complete coverage of a geographic area. RDD is widely used for statistical surveys, including election opinion polling and selection of experimental control groups. When the desired coverage area matches up closely enough with country codes and area codes, random digits can be chosen within the desired area codes. In cases where the desired region doesn't match area codes (for instance, electoral districts), surveys must rely on telephone databases, and must rely on self-reported address information for unlisted numbers. Increasing use of mobile phones (although there are currently techniques which allow infusion of wireless phones into the RDD sampling frame), number portability, and VoIP have begun to decrease the ability for RDD to target specific areas within a country and achieve complete coverage. (Wikipedia).
Types Of Numbers | Numbers | Maths | FuseSchool
We all know what numbers are 1, 2, 3, 4, 5, …. Including negative numbers -1, -2, -3, -4, -5, ... But did you know that mathematicians classify numbers into different types… into a number system. Let’s start at the top with real numbers. They can be positive… negative… zero… decimals, frac
From playlist MATHS: Numbers
Coding Math: Mini #6 - A Better Random
In this mini episode, we create two useful functions for generating random numbers. Support Coding Math: http://patreon.com/codingmath Source Code: http://github.com/bit101/codingmath
From playlist Minis
What are Irrational Numbers? | Number System | Don't Memorise
Watch this video to know more about Rational numbers, Irrational Numbers, Real Numbers and Number System. To learn more about Irrational Numbers, enroll in our full course now: https://infinitylearn.com/microcourses?utm_source=youtube&utm_medium=Soical&utm_campaign=DM&utm_content=CtRtXoT_
From playlist Irrational Numbers
How to take random samples using a random digits table
From playlist Unit 4: Sampling and Experimental Design
Delta Math Decimals and Number Functions
In this video, we look at some common issues with decimals on Delta Math.
From playlist Tech Ideas
From playlist a. Numbers and Measurement
This video explains how to multiply decimals. http://mathispower4u.wordpress.com/
From playlist Number Sense - Decimals, Percents, and Ratios
CSE 373 -- Lecture 22, Fall 2020
From playlist CSE 373 -- Fall 2020
Survey Research in the Digital Age
In this video, Professor Matthew Salganik discusses survey research in the digital age. Link to the slides: https://github.com/compsocialscience/summer-institute/blob/master/2020/materials/day4-surveys/01-survey-research-digital-age.pdf Link to articles and websites discussed in this vi
From playlist SICSS 2020
OSB 2015 - Using Asterisk to Stop Robocallers - Michael Pigg
Open source has a long history of reimplementing, and reverse engineering proprietary tools. This talk will integrate the tools needed to reverse engineer into stories of how it has been done before.
From playlist Open Source Bridge 2015
Distinguished Visitor Lecture Series Finding better randomness Theodore A. Slaman University of California, Berkeley, USA
From playlist Distinguished Visitors Lecture Series
The Computer Chronicles - Computers in Communications (1984)
This episode examines the use of computers in a variety of communications settings, from cell phones to landlines. Special thanks to archive.org for hosting these episodes. Downloads of all these episodes and more can be found at: http://archive.org/details/computerchronicles
From playlist The Computer Chronicles 1984 Episodes
The Statistical Science of Polling I NOVA Now Podcast | PBS
With so much uncertainty on the eve of the U.S. presidential election, one place we look for clarity is in the numbers. Pollsters learned valuable lessons from the 2016 election results that they’ve applied in the current election cycle to try to yield more accurate predictions. Host Alok
From playlist NOVA Now Podcast
Different Types of Numbers on the number line, lesson 1 #shorts
Watch the full playlist: https://www.youtube.com/watch?v=kcxK3_sROZA&list=PL14bv5vXK2WWuODhGbpPQA0GamV5ohOVb&index=1 Natural Numbers (N), (also called positive integers, counting numbers, or natural numbers); They are the numbers {1, 2, 3, 4, 5, …} Whole Numbers (W). This is the set of na
From playlist Celebrities Teach Math: The Number System
22C3: Anonymous Data Broadcasting by Misuse of Satellite ISPs
Speaker: Sven Löschner An open-source project to develop a tool for broadband satellite broadcasts The lecture focuses on satellite ISP technology and how to misuse it for anonymously broadcasting to an unlimited number of anonymous users while only one user pays for a standard dial-up c
From playlist 22C3: Private Investigations
A superior method of generating high-entropy memorized secrets Passwords are often at the core of our security. Learn how to make strong passwords you can remember. Password managers and MFA are highly recommended, but sometimes you're going to need to memorize a password. Be confident th
From playlist Software Development
How Facebook’s Algorithm Makes Zuckerberg the Most Powerful Human in History | Oliver Luckett
Watch the newest video from Big Think: https://bigth.ink/NewVideo Join Big Think Edge for exclusive videos: https://bigth.ink/Edge ---------------------------------------------------------------------------------- --------------------------------------------------------------------------
From playlist Best Videos | Big Think
EEVblog #211 - IET Decade Resistance Substitution Box
What's inside a $500 commercial decade resistance substitution box from IET Labs? Dave's about to find out. http://www.ietlabs.com/decadebox/rsbox.html
From playlist Product Reviews & Teardowns
Determine Rational or Irrational Numbers (Square Roots and Decimals Only)
This video explains how to determine if a given number is rational or irrational.
From playlist Functions