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Review For Quiz on Pie Charts. Constructing Pie Charts Deconstructing Pie Charts Select Vocabulary from Surveys & Variables. What is a Pie Chart?. A pie chart or __________________________ ______________________________________ ______________________________________

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review for quiz on pie charts
Review For Quiz on Pie Charts

Constructing Pie Charts

Deconstructing Pie Charts

Select Vocabulary from Surveys & Variables

what is a pie chart
What is a Pie Chart?

A pie chart or __________________________

______________________________________

______________________________________

What is another name for a Pie Chart?

_____________________________________

what is a pie chart1
What is a Pie Chart?

A pie chart or circle graph has sectors that visually display proportional parts of a total set of data that share a common variable

Another name: Circle Graph

4 pie chart characteristics
4 Pie Chart Characteristics
  • Help________________________________ ___________________________________.
  • Help _________________________________ ____________________________________.
  • Especially useful _____________________.
  • Most effective when ____________________ ____________________________________.
4 pie chart characteristics1
4 Pie Chart Characteristics
  • Help an audience understand distribution of data quickly and easily.
  • Help to see how a total is divided into categories
  • Especially useful with categorical data
  • Most effective when the number of segments is 10 or fewer
reviewing variable types
Reviewing Variable Types
  • __________ (or __________)
  • __________ (or __________)
variable vocabulary variables come in 2 varieties
Variable Vocabulary:Variables Come in 2 Varieties
  • Categorical (or Qualitative)
  • Quantitative (or Numerical)
reviewing variables 6 characteristics
Reviewing _________ Variables. 6 Characteristics
  • Recorded usually _________________
  • Records which of several ___________ _____________ belongs to
  • Count data in each ________, but ______________ should not ________ it
  • Can calculate ____________________
  • Includes all _____________________
  • Graphing:______________________
categorical variables
Categorical Variables
  • Recorded usually with words
  • Records which of several groups an individual belongs to
  • Count data in each group, but you logically should not average it
  • Can calculate %age distributions
  • Includes all yes/no questions
  • Graphing: best illustrated with a pie chart
2 types of quantitative variables
2 Types of Quantitative Variables
  • __________ If the Q variable is a set of isolated points on the number line, we call it this. (i.e., it’s a number but it only comes in certain values). Can be counted
  • __________ If the Q variable forms an entire interval along the number line, we call it this. (i.e., it’s a number & it can be any value). Can be measured
2 types of quantitative variables1
2 Types of Quantitative Variables
  • Discrete If the Q variable is a set Quantitative of isolated points on the number line, we call it this. (i.e., it’s a number but it only comes in certain values). Can be counted
  • Continuous If the Q variable forms an entire Quantitative interval along the number line, we Variable call it this. (i.e., it’s a number & it can be any value). Can be measured

Variable

vocabulary from surveys
Vocabulary from Surveys
  • Define a Population in a statistical sense: _______________________________
  • Define Data in a statistical sense: ________________________________
vocabulary from surveys1
Vocabulary from Surveys

1. Define a Population in a statistical sense: A population is an entire collection of individuals or objects about which information is desired.

2. Define Data in a statistical sense Data are numbers collected in a particular context. During a survey, the interviewer collects it. It always has units.

vocabulary from surveys2
Vocabulary from Surveys
  • What is good data? _______________________________
  • What is bad data? ________________________________
vocabulary from surveys3
Vocabulary from Surveys

1. Good Data in a statistical sense

Good Data is the result of intelligent effort and good random sampling methods.

2. Bad Data in a statistical sense

Bad Data are the result of laziness, lack of understanding, the desire to mislead others or bad sampling methods.

classwork homework
Classwork & Homework
  • Use the terms you’ve learned to deconstruct pie charts
  • Answer some the ‘usual’ questions about the nature of the survey using the data and your powers of analysis.
answering s about profs
Answering ?s About Profs
  • What is question to answer?
  • What is the population?
  • Describe the sample: numbers, units other description
  • Variables? Q or C?
  • Units or 2 categories
  • Conclusions?
answering s about profs1
Answering ?s About Profs
  • What is question to answer?
    • In teaching
  • What is the population?
    • Typical college professors
  • Describe the sample: numbers, units other description
    • ‘an average’ college professor
  • Variables? Q or C?
    • Time; Categorical
  • Units or 2 categories
    • Teaching, consulting, research, growth, comm serv, etc
  • Conclusions?
    • Most time is spent in teaching
slide28
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quiz 102 test taking strategies
What you need:

Graphing Calculator

Protractor

Compass

Pencil

Eraser

HW to the HW Box

How you take test:

Answer Vocabulary

Then do #2 Deconstruction

Then do #1 Construction of graph

WATCH THE TIME—

This test is longer

Quiz #102 Test Taking Strategies
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