# Understanding the World through Data

# Question 1

The following questions are based on the following data frame.

## Question 1.1

Not counting the course numbers, how many variables are recorded in this data frame?

( ) 0 ( ) 1 ( ) 2 ( ) 3 ( ) 4 (X) 5 ( ) 6 ( ) 7

## Question 1.2

What type of variable is the number of students?

( ) Integer ( ) Continuous Numerical (X) Discrete Numerical ( ) Logical ( ) Ordinal Categorical ( ) Nominal Categorical

## Question 1.3

What is the *most specific* term that can be given to this data structure?

( ) Spreadsheet ( ) Table ( ) Contingency Table (X) Data Frame ( ) Data Table

# Question 2

What is the statistics term used for a property of an object that can be measured and recorded?

( ) Data (X) Variable ( ) Constant ( ) Observational Unit ( ) Numerical