Soon everybody will … Dangerous Extrapolations. ‘By 1999, everybody will have a video recorder!’ This was a claim made in 1994, when the sales of video.

Slides:

Advertisements

Similar presentations

The ECAR Study of Undergraduate Students and Information Technology, 2012 Data Figures and Graphs.

Advertisements

Accounting for insurance claims

The Latest Stats about computer use ONS – Internet Access – Households and Individuals Ofcom – The Communications Market Report.

Are these arguments for or against capital punishment? Do you agree with the statements? Give reasons for your answers. “ Ain’t nobody with money.

Mathematical Modeling. What is Mathematical Modeling? Mathematical model – an equation, graph, or algorithm that fits some real data set reasonably well.

1 Non-Sampling Error Errors of inaccuracy caused through the research process that can be attributer to factors other than sampling errors.

Survey Sample Size MKTG 3342 Fall 2008 Professor Edward Fox.

1 1 Slide Simple Linear Regression Chapter 14 BA 303 – Spring 2011.

Copyright ©2013 The Nielsen Company. Confidential and proprietary. 1 Consumer Confidence Survey – Q3 – 2014 Field Dates: August 13 – September 5, 2014.

*United States estimate based on Q monthly average. For all of the most current estimates of U.S. cross-platform video consumption, please refer.

Statistics: Concepts and Controversies What Do Samples Tell Us?

WHAT IS SCIENCE WORD WALL PART 2. REPETITION Making multiple sets of measurements or observations in a scientific investigation. Running through the experiment.

Mayfield – Data Handling Lo: To understand which is the appropriate graph to test each hypothesis. To be able to self analyse and adapt my own work.

3.2.1 The role of Market Research and Methods Used:

2. Marketing planning After carefully studying this chapter, you should be able to: Explain why information is important to management; Explain marketing’s.

8.2 Estimating Population Means LEARNING GOAL Learn to estimate population means and compute the associated margins of error and confidence intervals.

STATISTICS AND PROBABILITY CHAPTER 4. STAT. & PROBABILITY 4.1 Sampling, Line, Bar and Circle Graphs 4.2 The Mean, Median and Mode 4.3 Counting Problems.

Natural Selection Problem

CHAPTER 1 LESSON 3 & 4 MATH IN SCIENCE + GRAPHS. WHAT ARE SOME MATH SKILLS USED IN SCIENCE? SOME MATH SKILLS USED IN SCIENCE WHEN WORKING WITH DATA INCLUDE.

Financial Projections Forecast—Budget—Analyze. Three Methods of Analyzing Financial Statements Vertical analysis Horizontal analysis Ratio analysis.

2007 Youth Risk Behavior Survey Results Alaska High School Survey Grades 9-12 Alaska Division of Public Health Weighted Data Physical Activity.

Science Starters Week 13 ILO 4 Use precise scientific language in oral and written communication.

Copyright © 2013, 2009, and 2007, Pearson Education, Inc. Chapter 1 Statistics: The Art and Science of Learning from Data Section 1.2 Sample Versus Population.

Time Series A collection of measurements recorded at specific time intervals.

The Scientific Method Variables (Physics Unit 1) What is a variable? What types of variables are there?

Grade Reports Feb. 2 nd, SID.6: Line of Best Fit Feb. 2 nd, 2015.

Unit 6 Review. Median-Median Line Find the median-median line for the following data: (1, 4) (6, 8) (7, 11) (7.5, 10) (8, 9) (9, 12) (9.5, 17) (10, 14)

The Scientific Method A quick overview.... The scientific method involves a series of steps that are used to investigate a natural occurrence. There can.

1-9 Patterns, Equations, and Graphs You can use an equation with two variables to represent the relationship between two varying quantities Solution.

Unit 2 – Spreadsheets Spreadsheets - Project Computer Shop.

Marketing “If everything seems to be going well, you have obviously overlooked something”

Cody Sherburn. Survey The survey was constructed to see if the generation difference between survey takers would determine their beliefs of cell phones.

Copyright © 2003, N. Ahbel Residuals. Copyright © 2003, N. Ahbel Predicted Actual Actual – Predicted = Error Source:

CPE News Antti Junttila Perttu Hietala. What happened in our school after last meeting? I have planned to make tablet video of how to build actual PC.

Science Process Skills. What is Science?

TECHNOLOGY SURVEY Middle and High Schools Southington Public Schools April 2012.

Your Science Fair Project Steps in doing a project DRAFT-OH1.

TECHNICAL WRITING [UWB20302] Findings Mdm Siti Aisyah binti Akiah.

Manual Computer-Based Homework Assignment Tracking Signals Turner Industries Due on, or before February 19th.

Copyright © 2013, 2009, and 2007, Pearson Education, Inc. Chapter 1 Statistics: The Art and Science of Learning from Data Section 1.1 Using Data to Answer.

Lecture 5 Tests About Proportions STAT 3120 Statistical Methods I.

1.6 Modeling Real-World Data with Linear Functions Objectives Draw and analyze scatter plots. Write a predication equation and draw best-fit lines. Use.

Asteroid Strike! Research the answers to these questions: What caused the extinction of the dinosaurs? What is the evidence for this theory? What were.

Intro to Probability and Statistics 1-1: How Can You Investigate Using Data? 1-2: We Learn about Populations Using Samples 1-3: What Role Do Computers.

3-1Forecasting Weighted Moving Average Formula w t = weight given to time period “t” occurrence (weights must add to one) The formula for the moving average.

Social Justice Post Survey Results May Social Justice & Technology Post-SurveyPlease answer all of the questions in the survey.: Please rate your.

David Housman for Math 323 Probability and Statistics Class 05 Ion Sensitive Electrodes.

Trend Lines and Predictions

Elementary Science Fair Journal

Motivation What do you think a graph is?

Activity Directions Get into groups of 4.

A Shocking Analysis Electricity Bill Evaluation IME 301 Brendan Cheng

29a. Percentage of employees who have at least a high school diploma, by industry, 2015 (All employment)

Photo Finish CH 8: Photosynthesis.

The Scientific Method.

Chapter 1 Linear Functions

GCSE Statistics Time Series.

Chapter 2: Statistics and Graphs (pg. 81)

Science and faith agree Science and faith disagree

Point-Slope Form.

Average Monthly “Video Viewing on a Computer” Reach by Demo

Does age have a strong positive correlation with height? Explain.

Today we are going back in time to help us predict the future!!!

Project Design and Framing

Predict with Linear Models

Section 8 Topics Agree / Disagree.

‘Should borders be open?’

Presentation transcript:

Soon everybody will … Dangerous Extrapolations

‘By 1999, everybody will have a video recorder!’ This was a claim made in 1994, when the sales of video recorders from 1987 to 1994 was analysed. Using the graph on the right, would you agree or disagree with this statement? Give your reasons. Source: BBC News Magazine GO FIGURE - Seeing stats in a different way:

By 1999, not everybody had a video recorder! This is what actually happened after a few more years had passed. Can you predict what would have happened after this? Source: BBC News Magazine GO FIGURE - Seeing stats in a different way:

Household ownership of electronic communications devices, USA, 2010 to 2019 This graph, produced in 2013, shows ‘household device ownership’: the percentage of households in the USA owning the different communications devices, based on surveys. Source: cellphones-will-be-smart-and-tablets-will- dominate-personal-computing/ cellphones-will-be-smart-and-tablets-will- dominate-personal-computing/

Household ownership of electronic communications devices, USA, 2010 to 2019 A researcher created this graph in 2013, using it to predict that by October 2017, every household in the USA will have a tablet device. The researcher plots data above 100%, because he states that the average number of computers in households varies between 1.1 and 1.2.

Household ownership of electronic communications devices, USA, 2010 to 2019 Identify at least two possible errors in the researcher’s use of data.