Survey

* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project

Document related concepts

Mathematical model wikipedia , lookup

Elementary mathematics wikipedia , lookup

Statistics education wikipedia , lookup

Foundations of statistics wikipedia , lookup

Statistics wikipedia , lookup

Transcript
```Reviewing Surveys and
Variables
Preparing for Quiz 101
General Definitions
1. __________
The art & science of collecting,
analyzing, presenting and
interpreting data.
2. Two (dictionary) meanings
A____________________
meanings of Statistics
B____________________
3. __________
It’s the branch of mathematics that
Statistics belongs to.
4. Why is Statistics Different from other math disciplines?
A___________________ B ___________________
5.
How can statistics help us?
_____________________________________________
2
General Definitions in Statistics
6. _______The entire collection of
which information is desired.
7. _______Statistical surveys usually
begin with this. We want an answer.
8. _______A subset of the population
selected for a study by some
specific criteria or prescribed
manner.
3
General Definitions in Statistics Cont’d
9. ________
10. ________
11. ________
An object which is one
member of the sample. The
member could be a person,
animal or thing.
Any characteristics of an
individual. These take on
different values for different
individuals.
A study using the entire
population.
4
Key Vocabulary Continued
12. ________
13. _______
Numbers collected in a particular
context. During a survey, the
interviewer collects it. Always
has units.
A voluntary encounter between
strangers, one the interviewer
and the other the individual.
The interviewer seeks
information ______________
_____________________.
5
Key Vocabulary Continued
14. _________ Take the conclusions and decide
if they apply ________________
_________________ or
____________________.
15. _________ Take the data.
Crunch it. __________________.
16. What is good data?
_____________________________________
________________________________________
6
Variables Come in 2 Varieties
1.
_________ (or __________)
2. __________ (or __________)
7
________ Variable Characteristics
1. Recorded __________________
2. Records which of ___________groups
______________________________
3. Count _________category_________
_______________________________
4. Can calculate ____________________
5. Includes all _____________________
6. Graphing: ______________________
8
______________ Variable Characteristics
1. Possible responses _______________
2. Includes values
___________operations like
___________________________
questions
4. Includes ‘______’
5. Graph:__________________________
9
2 Types of ____________ Variables
1. __________ If this variable is a set
of___________________,
we call it this.
(i.e., it’s a number but it only comes
in certain values). Can be ________.
2. __________ If this variable forms__________
____________, we call it this.
(i.e., it’s a number & it can be any
value). Can be __________.
10
Venn Diagrams
• Draw a Venn Diagram that shows the
relationship between an Individual,
Population and Sample for a Normal
Survey.
• Draw a Venn Diagram that shows the
relationship between an Individual,
Population and Sample for a Census.
11
What Else?
Don’t forget to study this tonight.
12
Elements in a Survey
1 What ________ is to be answered?
2 Why specifically are we ____________
____________?
3 What __________ is going to be used to
_____________________?
4 What ___________ of the population
______________ the whole?
5 How is the ______ chosen? Is it
________?
13
Elements in a Survey
6 How many _________ in the _______
are chosen in what ________?
7 What is the _______ to be measured
and what ____ represents that
________?
8 What are the ______ for each piece of
________________?
9 Any question about the ___________ of
the data?
14
Elements in a Survey
10 What are some ______________ to be
11 Can we apply the __________ to the
_________________?
15
Quiz #101
(for Period 6: Butterfly #101)
Quiz Itself
• Clear Desks
• Pencil
• Eraser
• No Calculator needed
• 2 pages to complete
• When finished, turn into
HW box at front of room
• BRING CALCULATORS,
PROTRACTOR,
COMPASS TO CLASS
TOMORROW
Homework
• Turn in HW 104-105 to
the Homework Box for