Communicating with Graphics

STAT 20: Introduction to Probability and Statistics

Agenda

  • Discussion + Concept Questions
  • PS 5: Practice: Communicating with Graphics
  • Introducing Lab 3
  • Lab 3.1

Concept Questions

Question 1

In the following plot of height and mass of Star Wars characters, identify the mappings:


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Question 2

Which elements have been applied to the following plot?


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PS 5: Practice with Communicating with Graphics

Lab 3

Questions to Ask When You’re Determining Categorical vs Numerical for Variables that are Numbers

  1. Do the values the variable takes function as identifers?

If yes, then it’s categorical

Questions to Ask When You’re Determining Categorical vs Numerical for Variables that are Numbers

  1. Can I meaningfully do math with this variable?
  • take an average
  • calculate a maximum or minimum

If yes, then it’s numerical

Questions to Ask When You’re Determining Categorical vs Numerical for Variables that are Numbers

  1. Is the variable cyclical?
  • What does this cyclicality mean in practice?
  • Do you need more information to fully understand its meaning?