Submission (Due Wednesday, April 2 by the start of class)
Submit your completed reading guide to the Canvas assignment portal!
1.2 Concept Quiz – Due Wednesday by the start of class
The data frame below contains information on runners in the 2017 Cherry Blossom Run, which is an annual road race that takes place in Washington, DC. Most runners participate in a 10-mile run while a smaller fraction take part in a 5k run or walk.
1. How many observations and how many variables are included in these data?
2. What are the different types of variables that can appear in a dataset? Select all that apply!
discrete numerical
ordinal categorical
nominal categorical
continuous numerical
discrete categorical
3. Just because a variable has numeric values, does not mean it is a numeric variable. Which of the following variables appear numerical but behave like a categorical variable? Select all that apply!
zip code
GPA
height
year in school
Data were collected on 344 penguins living on three islands (Torgersen, Biscoe, and Dream) in the Palmer Archipelago, Antarctica. In addition to which island each penguin lives on, the data contains information on the species of the penguin (Adelie, Chinstrap, or Gentoo), its bill length, bill depth, and flipper length (measured in millimeters), its body mass (measured in grams), and the sex of the penguin (female or male).
4. There are ___ observations (cases) in these data and ___ variables.
5. Which of the following variables are numerical?
island
species
bill depth
body mass
bill length
flipper length
sex
6. There are ____ species of penguins included in these data: ____, ____, and ____.
2 R Tutorial – Due Wednesday by the start of class