Basic Methods of Sampling Random Sampling Selected by using chance or random numbers Each individual subject (human or otherwise) has an equal chance of.

Slides:



Advertisements
Similar presentations
Section 1-4 Data Collection & Sampling Techniques.
Advertisements

Significance Testing.  A statistical method that uses sample data to evaluate a hypothesis about a population  1. State a hypothesis  2. Use the hypothesis.
Sampling Distributions 2-2 This content begins on page 44 of a book that is on a truck that is on it’s way to Lassiter.
Chapter 12: Statistics and Probability
MBF3C Lesson #1: Sampling Types and Techniques
7.5 (purple) Select and Draw Conclusions from Samples Statistics Test: Oct. 20 (Wednesday)
Sampling Methods Algebra II.
Section 7.3 – Simple Random Samples
SINGLE VARIABLE DATA DEFINITIONS ETC. GENERAL STUFF STATISTICS IS THE PROCESS OF GATHERING, DISPLAYING, AND ANALYZING DATA. DATA CAN BE GATHERED BY CONDUCTING.
Voluntary Sampling  Voluntary samples are surveys where members of a population are invited to respond voluntarily.  Responses are not mandatory.
Chapter 13 Data Sources, Sampling, and Data Collection.
Lesson 7.5 M2 Select & Draw Conclusions from Samples A survey is a study of one or more characteristics of a group. The entire group you want information.
Section 1 Part 1. Samples vs Population  Benefits of getting data from the entire population….  You can draw a conclusion about the entire population….more.
The 6 Sample Survey Methods September 26, So far, we have discussed two BAD methods… 1. Voluntary Response Method People who respond usually have.
1 Chapter 1. Section 1-4. Triola, Elementary Statistics, Eighth Edition. Copyright Addison Wesley Longman M ARIO F. T RIOLA E IGHTH E DITION E LEMENTARY.
6.6 Analyze Surveys and Samples Math Analyze Surveys and Samples Vocabulary GPS MM1D3. Students will relate samples to a population.
Welcome Back! You will be able to recognize different sampling techniques. You will be able to understand bias and variability. You will be able to understand.
Chapter 11.0 Why Study Statistics? Statistics is the study of collecting, displaying, analyzing, and interpreting information. Information that was collected.
Holt CA Course Selecting Samples SDAP2.2 Identify different ways of selecting a sample (e.g., convenience sampling, responses to a survey, random.
Section Copyright © 2014, 2012, 2010 Pearson Education, Inc. Chapter 1 Introduction to Statistics 1-4/1.5Collecting Sample Data.
Population  Random Selection  Sample. Sampling Vocabulary Population of Interest  the set of people or things you wish to know something about Sample.
Population vs. Sample The entire group of individuals that we want information about is called the population. A sample is a part of the population that.
Section 1.2 Random Samples 1.2 / 1. Sampling techniques Simple Random Sampling Stratified Sampling Systematic Sampling Cluster Sampling Convenience Sampling.
Section 1-4 Collecting Sample Data. DEFINITIONS Observational Study: observing and measuring specific characteristics without attempting to modify the.
MDM4U - Collecting Samples Chapter 5.2,5.3. Why Sampling? sampling is done because a census is too expensive or time consuming the challenge is being.
Lesson 10.7 Concept: How to compare and select samples of a population. Learn about different methods of sampling. Guidelines: There are different sample.
MDM4U – Mathematics of Data Management
Slide 1 Copyright © 2004 Pearson Education, Inc. Misuses of Statistics  Bad Samples  Small Samples  Misleading Graphs  Pictographs  Distorted Percentages.
1 UNIT 10: POPULATION AND SAMPLE. 2 Population The entire set of people, things or objects to be studied An element is a single member of the population.
SAMPLING METHODS. Remember: How do we pick our sample? 6 main kinds of sampling The kind of sampling you choose depends on the type of survey you are.
A Survey is a study of one or more characteristics of a group. A Survey is a study of one or more characteristics of a group.
Section 1.3 The Process of a Statistical Study HAWKES LEARNING SYSTEMS math courseware specialists Copyright © 2008 by Hawkes Learning Systems/Quant Systems,
Copyright (C) 2002 Houghton Mifflin Company. All rights reserved. 1 Methods of Producing Data Sampling: drawing subsets from the population Experimentation:
Section 1-3 Data Collection and Sampling Techniques.
Sampling Methods and Cautions
Sampling The complete set of people or objects that information is collected from is called the population. Information is normally taken from a small.
7.5 Select and Draw Conclusions from Samples 7.3 and 7.4 HW Quiz: TOMORROW Quiz: Friday Test: August 27.
6.6 Analyze Surveys and Samples MM1D3c: Understand that a random sample is used to improve the chance of selecting a representative sample. Unit 4: The.
Chapter 5 Sampling: good and bad methods AP Standards Producing Data: IIB4.
Design of Experiments & Sampling Techniques.
Data Collection and Experimental Design. Data Collection Methods 1. Observational study 2. Experiment 3. Simulation 4. Survey.
Kinds of Samples Statistics is still fun. Random – Choose your population - 7 th graders/7 th grade teachers/7 th grade parents. – Put all the names in.
Statistics 300: Introduction to Probability and Statistics Section 1-4.
Chapter 7 Data for Decisions. Population vs Sample A Population in a statistical study is the entire group of individuals about which we want information.
Types of Samples. Samples Population – the main group or set from which observations or opinions can be made Sample – a small part of a population from.
Sampling Sampling – the process of obtaining a sample from a population Simple Random Sampling – sample selected at random from a population in which every.
SAMPLING. Voluntary Response Individuals choose to join the sample in response to an open invitation.
1 Press Ctrl-A ©G Dear2009 – Not to be sold/Free to use Types of Sample Stage 6 - Year 11 Applied Mathematic (Preliminary General 1)
Chapter 3 Sampling Techniques. Chapter 3 – Sampling Techniques When conducting a survey, it is important to choose the right questions to ask and to select.
Honors Stats 3 Day 5. Do Now 1) Round 2 Match game! Turn all the cards over and match the examples to the bias 2) Check your HW: Questions??
Unit E: Statistics Unit E1: Samples and Populations Digits Topic 14.
Collecting Samples Chapter 2.3 – In Search of Good Data Mathematics of Data Management (Nelson) MDM 4U.
Warm-up ① 5+3(x – 6) – 7x ② -3n(n – 5) ③ -(-3y + 5) + 2y – 13 ④ Order the numbers for least to greatest. ⑤ Evaluate when x = – 4 and y = – – (–x)
Data Collection & Sampling Techniques
Lesson 10.7 Concept: How to compare and select samples of a population. Learn about different methods of sampling. Guidelines: There are different sample.
Data Collection Statistics
محيط پژوهش محيط پژوهش كه قلمرو مكاني نيز ناميده مي شود عبارت است از مكاني كه نمونه هاي آماري مورد مطالعه از آنجا گرفته مي شود .
Select and draw conclusions from samples
The Language of Sampling
1.2 Sampling LEARNING GOAL
نمونه گيري و انواع آن تدوین کننده : ملیکه سادات ابراهیمی
6.4 Select and Draw Conclusions from Samples
Sampling.
The Language of Sampling
Census: a survey which measures an entire population.
7.5 (purple) Select and Draw Conclusions from Samples
Choosing a Sample.
Sampling Techniques Statistics.
Representative sampling By Majed Muati. Sampling Methods Representative Samples. Random Sampling. Systematic Sampling.
EQ: What is a “random sample”?
Presentation transcript:

Basic Methods of Sampling Random Sampling Selected by using chance or random numbers Each individual subject (human or otherwise) has an equal chance of being selected Examples: Drawing names from a hat Random Numbers

Basic Methods of Sampling Systematic Sampling Select a random starting point and then select every k th subject in the population Simple to use so it is used often

Basic Methods of Sampling Convenience Sampling Use subjects that are easily accessible Examples: Using family members or students in a classroom Mall shoppers

Basic Methods of Sampling Volunteer Sampling Person request to take part in the survey Hey can I take your survey on the school lunch?