'Voluntary response sample' presentation slideshows

5.1 Objectives

5.1 Objectives. Define population and sample Explain how sampling differs from a census Explain what is meant by a voluntary response sample Give an example of a voluntary response sample Explain what is meant by convenience sampling Define what it means for a sampling method to be biased

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Collecting Data Sensibly

Collecting Data Sensibly. Chapter 2. 2.1 Statistical Studies: Observation and Experimentation. Whether or not a conclusion is reasonable depends on how the data were collected.

672 views • 40 slides

AP Statistics Jeopardy

AP Statistics Jeopardy. Sampling. Experiments. Misc. 100. 100. 100. 200. 200. 200. 300. 300. 300. 400. 400. 400. 500. 500. 500. 600. 600. 600. Credits. Sampling - 100.

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Chapter 3 Producing Data

Chapter 3 Producing Data . Observational study : observes individuals and measures variables of interest but does not attempt to influence the responses (ex. surveys/polling)

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Chapter 2

Chapter 2. Graphical summaries of data . Definitions. A frequency distribution is a table that represents the frequency for each category. The relative frequency of a category is the frequency of the category divided by the sum of all the frequencies.

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Chapter 5 Producing Data

Chapter 5 Producing Data. 5.1 Designing Samples 5.2 Designing Experiments 5.3 Simulating Experiments. 5.1 Designing Samples. Population Entire group of individuals that we want info about A census attempts to contact entire population Sample

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Lesson 5 - 1

Lesson 5 - 1. Designing Samples. Knowledge Objectives. Define population and sample . Explain how sampling differs from a census . Explain what is meant by a voluntary response sample . Give an example of a voluntary response sample .

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Chapter One, Part 2

Chapter One, Part 2. 1.4: Critical Thinking in Statistics 1.5: Collecting Sample Data. Quick Review. We typically have a VERY LARGE set of individuals (called the Population ), but we cannot obtain data from every individual.

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Launching into Inference: From Common Core to AP Statistics

Launching into Inference: From Common Core to AP Statistics. Daren Starnes The Lawrenceville School dstarnes@lawrenceville.org. CMC South 2013. Common Core State Standards. Making Inferences and Justifying Conclusions S-IC

290 views • 16 slides

Political Science 30: Political Inquiry

Political Science 30: Political Inquiry. Drawing a Good Sample. Finishing Up Polling. Random Sampling Margin of Error Nonrandom methods of drawing a sample or HOW NOT TO DO A POLL Convenience sample Voluntary response sample. How to Draw a Random Sample.

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9-1

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CHAPTER 4 Designing Studies

CHAPTER 4 Designing Studies. 4.1 Samples and Surveys. Population, Census, and Sample. The population in a statistical study is the entire group of individuals we want information about. A census collects data from every individual in the population.

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Created by Tom Wegleitner, Centreville, Virginia

Section 1-3 Critical Thinking. Created by Tom Wegleitner, Centreville, Virginia. Success in Statistics. Success in the introductory statistics course typically requires more common sense than mathematical expertise.

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Convenience, Voluntary, Simple Random Sample

Convenience, Voluntary, Simple Random Sample. Redefine as a class the following sampling techniques. . Convenience Voluntary Response Simple Random Sample. Choosing individuals who are easiest to reach. Individuals choose to participate in the study.

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Journal Topic

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AP Statistics

AP Statistics . Section 5.1 Designing Samples. Objective: To be able to identify and use different sampling techniques. Observational Study : individuals are observed and variables of interest are measured. No influence on the responses.

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Surveys/Experiments Observation

Surveys/Experiments Observation. 2 sample project instructions. Avoid Bias Results. What makes a sample bad? Voluntary Response Sample Biased towards those with strong opinions. Avoid Bias Results. What makes a sample bad? Voluntary Response Sample

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Station Activity

Station Activity. Convenience Sample, Voluntary Response Sample, Simple Random Sample. Nike decides to open up an opinion poll on their website about the favorite type of shoes amongst teenagers. All people who participate will be given 5 dollars to any Nike outlet store. Station 1.

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Misuses of Statistics

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Bias and Error

Bias and Error. What can go wrong?. Bias. Samples that do not represent every individual in the population fairly is said to be biased. Bias is the one thing above all to avoid when sampling.

307 views • 7 slides