1. Sampling Methods 9/16/2015 Statistics Mr. DeOms
SWBAT explain the purpose of and different varieties of sampling methods.
SWBAT build community and understanding by sharing images of self.

2. What are the two categories of Sampling Methods?
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What are the advantages and disadvantages to both?
+ ___________________ ___________________
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What are the 6 main types of Sampling Methods?

3. Congratulations! P1 Class Leaders Top Scores on Quiz #1 Tyla Shawna
Kiara
Jade
Juwan
Rodre
Charley
Shawna
Tyla
Kiara
Donald

4. Please get out a piece of loose leaf paper for today’s Notes
Name
9/16/2015
Stats – 1
Sampling Methods

5. Vocabulary in Today’s Lesson
Convenience Sampling
Voluntary Response Sampling
Simple Random Sampling
Stratified Sampling
Cluster Sampling
Systematic Random Sampling
Observational Study
Survey
Population
Sample
Parameter
Statistic
Probability Sampling
Non-Probability Sampling

6. Parameter
– true value of a population variable.
- based on data collected from the whole population
Statistic
- estimate of a population variable
- based on data collected from a sample of the population

7. Sampling Method
– how subjects are selected from population for a sample
Probability sample Non-Probability Samples
Probability known Probability not known
Good for analysis Cheap, easy, and fast
All parts of population
have a chance of being
included in sample

9. 2 Main Types of Non-Probability Sampling
Voluntary Response Sample – Subjects self select
Convenience Sample – Subjects are easy to reach

10. 4 Main Types of Probability Sampling
- Simple Random Sample
- Stratified Sample
- Cluster Sample
- Systematic Random Sample

11. Simple Random Sample
– Population of N, sample size of n, all possible samples are equally likely to be selected

13. Stratified Sample
– Population classified into homogenous groups, and subjects are randomly selected from each group

15. Cluster Sample
– Population divided into heterogeneous groups, and subjects are selected from a few of the clusters

17. Systematic Random Sample
– Select every kth element of the population

19. Complete first half of Stats.9.Homework
- COMPLETELY ANSWER EACH QUESTION ON A PIECE OF LOOSELEAF PAPER OR TYPED.
- USE COMPLETE SENTENCES AND EXPLAIN YOUR WORK.
- IF YOU WORK WITH A PARTNER, ACKNOWLEDGE THAT PARTNER.
- EVERY STUDENT NEEDS TO TURN IN THEIR OWN WORK, IN THEIR OWN WORDS.