What type of data is: The scores out of 20 using whole numbers only for an assignment
Numerical discrete
What type of data is: The time taken to complete a task
Numerical continuous
Numerical or categorical? The number of pets in a household
Numerical
What type of data is: The type of caterpillar found in a number of vegetable garden beds
Categorical nominal
Type of sampling technique: One hundred email addresses are randomly selected from a list of all email addresses in a workplace.
Simple random
Type of sampling technique: People at a hospital are sorted into age groups then tested for their reaction to a particular type of medicine.
Stratified
Type of sampling technique: Every eighth Christmas tree sold at a shop is tested for bugs.
Systematic
What type of data is: The weight of 25 packets of chips delivered to a shop
Numerical continuous
What type of data is: The time taken to complete a 100 m sprint
Numerical continuous
Type of sampling technique: Every fifth competition paper ordered by surnames is selected for analysis regarding the working shown.
Systematic
Type of sampling technique: A car factory assembly line chooses every fifth car to check the quality of paint.
Systematic
What type of data is: The level of firmness of a bed described as hard, medium or soft
Categorical ordinal
What type of data is: The number of students in all the academic classes in a school
Numerical discrete
Type of sampling technique: Fifty dogs are first grouped into breed type then tested for fleas.
Stratified
Numerical or categorical? The type of mark on a test as either answer, method or consequential
Categorical
What type of data is: The type of safety vest used with one of three sizes available including large, medium or small
Categorical ordinal
Type of sampling technique: Every tenth person in the queue at a football match is surveyed regarding their thoughts about who will win the match.
Systematic
What type of data is: The mass of each shell in a collection of sea shells
Numerical continuous
Numerical or categorical? The colour of hair on the heads of 13 models
Categorical
What type of data is: The colours of the next 10 cars that pass on a busy road
Categorical nominal
What type of data is: The results of a survey asking people to rate a TV program as good, satisfactory or poor
Categorical ordinal
What type of data is: The style of jacket on a wall in a shop
Categorical nominal
Numerical or categorical? The number of litres of drink in 10 bottles
Numerical
What type of data is: The number of computers in a household
Numerical discrete
What type of data is: The rating of a guides use of the English language with the options: excellent, good, fair and poor
Categorical ordinal
Type of sampling technique: A school surveys students about the new uniform and selects a random sample of 20 students from each year level.
Stratified
Type of sampling technique: Every family in an apartment block is assigned a number and then five random numbers are chosen so that families can be surveyed regarding their thoughts on the standard of the cleaning in the block.
Simple random
Type of sampling technique: Athletes are divided into sport type then tested for heart fitness.
Stratified
Type of sampling technique: A random selection of people chosen from the electoral role are surveyed regarding their opinion on how the election was conducted.
Simple random
What type of data is: The type of food purchased at a supermarket
Categorical nominal
What type of data is: The shirt size of a range of clothing using the integers 36 , 37 , 38 , ...
Numerical discrete
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