State whether the following are examples of univariate data or bivariate data:
A school collects data on the height of each student in two classes in order to compare the classes.
A scientist collects data on iron levels in soil and growth of a type of weed in order to investigate the relationship between them.
A school collects data on the shoe size of each student in the school.
A hockey club collects data on time travelled to get to training from members of three teams in order to compare them.
A political group collects data on the taxable income and the addresses of the local electoral constituents in order to investigate if there is an association.
A psychologist collects data on the number of days in daycare and NAPLAN results in grade three in order to investigate the relationship between them.
John wishes to investigate whether there is an association between the amount of natural sunlight in a classroom and student’s exam results.
Emma wishes to investigate whether players in the A hockey team have higher average mathematics test results than players in the B hockey team.
State whether the following are examples of categorical data or numerical data:
Favourite flavours
Maximum temperature
Daily temperature
Types of horses
Amount owing on layby
Types of vegetables
Brands of tablets
Types of folders
Amount on gas bill
Brands of phones
Types of fruits
Colours of folders
Maximum snowfall
Daily UV index
Types of cats
Favorite colours
Maximum rainfall
Makes of cars
Types of fruits
Amount of water used for bath
State whether the following numerical data types are discrete or continuous:
The number of classrooms in your school
Daily humidity reading
The ages of a group of people
The time taken to run 200 \text{ m}
Lengths of cats' whiskers.
The distance from the Earth to nearby galaxies
How long it takes you to fall asleep at night
Amount of money paid for walking the dog
The number of people taller than you in your class
The top speed of different models of motorcycles
The size of people's rare coin collections
The amount of soft drink you drink in a day
The world record time for solving 10 Rubik's cubes
The hourly pay rate for a particular job
The number of views that a YouTube channel has
The rainfall in your city
Number of players in your sports team
The strength of an earthquake
Amount of money owing on a mortgage
Your marks in your most recent Physics test
State whether the following categorical data types are nominal or ordinal:
Eye colour
Your birthdate
Temperature
Favourite song
State/territory of birth
Year level
School faction or house
Position in a queue
Classify the following examples of data as either:
Numerical discrete
Numerical continuous
Categorical nominal
Categorical ordinal
Length of pencils in mm
Year of birth
Time taken to get to school in minutes
Favourite movies
Weight of dogs in kg
Number of siblings
Number of births
Driving license status (learner, red P, etc)
Hair colour (black, red, blonde, etc)
Hourly rate of pay
Country of birth
Population of your town
Types of cars in a shopping centre carpark
Heights of people at an athletics carnival
Weights of dogs
The languages spoken in your class
The number of languages students in your class speak
The number of people at an athletics carnival
The time spent playing games each day
The number of sports equipment items that you own
The workplaces of people living in Sydney (office, home office, etc)
The body temperature of a hospital patient taken over a 21 hour period
The number of people attending a netball game
The brands of breakfast foods in a supermarket
The weights of fitness club members