Survey

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Survey

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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 individuals or objects about 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? _____________________________________ 17. What is bad 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 ___________________________ 3. Includes answers to________________ 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 drawn about the results? 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 • Questions? Please raise your hand and ask • BRING CALCULATORS, PROTRACTOR, COMPASS TO CLASS TOMORROW Homework • Turn in HW 104-105 to the Homework Box for your period • New HW #106 will be delivered to you. Due tomorrow • We will pass back previous HW’s. KEEP ALL OF THEM for Resubmission at end of 1st Quarter 16